GNSS for operating vehicles — Technical specification for vehicle terminals
(JT/T 794-2019)
Professional Standard Amendment 1
Add the item a) “Signal receiving: It can at least receive B1I or B1C signals of BeiDou navigation satellite system;” in the subclause 6.2 "Satellite positioning module". The original items a) ~ e) are adjusted to b) ~ f) respectively. After the amendment, the contents of 6.2 "Satellite positioning module" are as follows:
The satellite positioning module shall meet the following technical requirements:
a) Signal receiving: It can at least receive B1I or B1C signals of BeiDou navigation satellite system;
b) Number of satellite signal receiving channels: Not less than 12;
c) Sensitivity: Higher than -130 dBm;
d) Positioning accuracy: The horizontal positioning accuracy is not more than 15 m, the elevation positioning accuracy is not more than 30 m, and the velocity positioning accuracy is not more than 2 m/s; Differential positioning accuracy (optional) is not more than 1 m;
e) Minimum location update rate: 1 Hz;
f) Hot start: The capture duration shall not exceed 10 s.
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Foreword
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces JT/T 794-2011 GNSS for operating vehicles — Technical specification for vehicle terminals. In addition to editorial changes, the following main technical changes have been made with respect to JT/T 794-2011:
——The definitions of start time of travelling, effective parking and cumulative driving time have been added (see 3.1.3, 3.1.4 and 3.1.6);
——The definition of single continuous driving time has been modified (see 3.1.5 herein and 3.1.3 in 2011 edition);
——The terminal IMEI number has been added (see 4.3);
——The protection requirements for trailer terminal have been added, (see 4.6);
——The requirements for self-test frequency have been added (see 5.1);
——The function of BeiDou positioning has been added (see 5.2.1);
——TD-LTE, FDD-LTE and LTE-V2X communication modes have been added (see 5.3.1);
——The requirements for encrypted transmission have been added (see 5.3.2);
——The requirements for driver's identity have been modified (see 5.4.1 herein and 5.4.1 in 2011 edition);
——The requirements for taxi operation data acquisition have been deleted (5.4.5 in 2011 edition);
——The requirements for travelling data record have been modified (see 5.5 herein and 5.5 in 2011 edition);
——The information acquisition requirements for electronic travel permit have been modified and the requirements for data transmission encryption have been added (see 5.4.2 herein and 5.4.2 in 2011 edition);
——The requirements for image information have been modified and the requirements for highest resolution have been added (see 5.4.6 herein and 5.4.7 in 2011 edition);
——The requirements for audio information have been deleted (5.4.8 in 2011 edition);
——The requirements for video information have been modified and the requirements for highest resolution and video frame rate have been added (see 5.4.7 herein and 5.4.9 in 2011 edition);
——The requirements for vehicle state information acquisition have been added (see 5.4.8);
——The monitoring requirements have been modified, and the requirements for monitoring through data link and storing the monitoring data locally have been added (see 5.6 herein and 5.6 in 2011 edition);
——The call requirements have been modified, and the call function through data link have been added (see 5.7 herein and 5.7 in 2011 edition);
——The time requirement for entering sleep state after the engine shutdown and the sleep requirement of trailer terminals have been added, and the requirements for vehicle start-up and ignition detection function and the average power requirement of terminals in sleep have been modified (see 5.8);
——The reminders about restricted period, antenna disconnection, tyre pressure abnormality, collision, rollover, unsafe driving behavior and right-turning blind zone abnormality have been added (see 5.9);
——The terminal management requirements have been modified, and the requirements for data transmission encryption have been added (see 5.10 herein and 5.10 in 2011 edition);
——The requirements for calling service have been deleted (5.13 in 2011 edition);
——The requirements for multi-centre access have been modified, as well as requirements for domain name access mode (see 5.13 herein and 5.14 in 2011 edition);
——The requirements for automatic shutdown of communication and ETC function have been added (see 5.14 and 5.15);
——The requirements for power-off protection performance have been deleted (see 6.6.2 in 2011 edition);
——The adaptability to mechanical environment has been modified (see 6.5.2 herein and 6.5.2 in 2011 edition);
——The transient immunity requirements have been deleted (6.6.2 in 2011 edition);
——The requirements for transient conducted immunity along the power line have been added (see 6.6.2);
——The requirements for immunity to disturbances from electrical transient transmission by coupling have been added (see 6.6.3);
——The requirements for vehicle ignition resistance have been deleted (6.7 in 2011 edition);
——The installation requirements of the terminal host have been modified, and it has been made clear that the vehicle speed signal input of the terminal shall be taken from the pulse signal of the vehicle speed sensor, and the brake signal input from the brake switch quantity signal (see 7.2);
——The inspection rules have been added (see Clause 8);
——Table A.1 "Basic functional requirements of various transport vehicle terminals" in Annex A has been modified (see Annex A hereto and Annex A to 2011 edition).
This standard was proposed by and is under the jurisdiction of National Technical Committee on Road Transport of Standardization Administration of China (SAC/TC 521).
The previous edition of this standard is as follows:
——JT/T 794-2011.
GNSS for operating vehicles —
Technical specification for vehicle terminals
1 Scope
This standard specifies the general requirements, functions, performance and installation requirements and inspection rules for the vehicle terminals of GNSS for operating vehicles.
This standard is applicable to the vehicle terminals on-board in GNSS for operating vehicles.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated reference, only the edition cited applies. For undated references, the latest edition (including any amendment) applies.
GB/T 4208 Degrees of protection provided by enclosure (IP code)
GB/T 19056 Vehicle travelling data recorder
GB/T 19951-2005 Road vehicles — Test methods for electrical disturbances from electrostatic discharge
GB/T 21437.2-2008 Road vehicles — Electrical disturbances from conduction and coupling — Part 2: Electrical transient conduction along supply lines only
GB/T 21437.3-2012 Road vehicles — Electrical disturbances from conduction and coupling — Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
GB/T 28046.1 Road vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 1: General
GB/T 28046.3-2011 Road vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 3: Mechanical loads
JT/T 617.5 Regulations concerning road transportation of dangerous goods — Part 5: Consignment
JT/T 766-2009 Technical requirements for shipborne monitoring equipment of BeiDou navigation satellite system
JT/T 825 IC card license for road transportation
QC/T 1067.1 Connector used in automobile wire harness and electrical device — Part 1: Definition, test method and requirement
GB/T 31465.3 Road vehicles — Fuse-link — Part 3: Fuse-link with blade type
QC/T 414 Design rule of color and type code for automotive cables
YD/T 1050 Test Specification for 800 MHz CDMA Digital Celluar Mobile Telecommunication Network: Terminal Part
YD/T 1214 Technical requirement of 900/1800MHz TDMA Digital Cellular Mobile Telecommunication Network General Packet Radio Service (GPRS) Equipment: Mobile Stations
YD/T 1367 Technical requirements for user equipment of 2GHzTD-SCDMA digital cellular mobile communication network
YD/T 1547 Technical requirements for 2GHz WCDMA digital cellular mobile communication network user equipment (Phase 3)
YD/T 1558 Technical Requirements of mobile station for 800MHz/2GHz cdma2000 digital cellular mobile telecommunication network
YD/T 2575 Technical requirements for user equipment of TD-LTE digital cellular mobile telecommunications network (Phase 1)
YD/T 2577 Technical requirements for user equipment of LTE-FDD digital cellular mobile telecommunications network (Phase 1)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1.1
firmware
embedded software running in the terminal microprocessor
3.1.2
electronic travel permit
electronic data including vehicle, passenger and cargo information
3.1.3
start time of travelling
time that the state of vehicle changes from stationary to travelling (at a speed of more than 0 km/h for more than 10 s)
3.1.4
effective parking
action during which the state of vehicle changes from stationary to travelling (at a speed of 0 km/h) for at least 20 min
3.1.5
single continuous driving time
duration from the start time of the travelling till the start time of effective parking for the same driver
3.1.6
cumulative driving time
sum of single continuous driving time of the same driver within 24 h
3.1.7
monitoring centre
software platform for monitoring vehicle road transport
3.1.8
sleep
special state that the terminal remains in contact with the monitoring centre after the vehicle stalls
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
CAN——Controller Area Network
IMEI——International Mobile Equipment Identity
GSM——Global System for Mobile Communication
CDMA——Code Division Multiple Access
TD-SCDMA——Time Division-Synchronous Code Division Multiple Access
WCDMA——Wideband Code Division Multiple Access
CDMA2000——Code Division Multiple Access 2000
TD-LTE——Time Division-Long Term Evolution
FDD-LTE——Frequency Division Duplexing-Long Term Evolution
LTE-V2X——Long Term Evolution-Vehicle to Everything
JPEG——Joint Photographic Experts Group
ETC——Electronic Toll Collection
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4 General requirements
4.1 Composition of vehicle terminal
4.1.1 Host
The host of vehicle terminal [hereinafter referred to as the "terminal"] shall include microprocessor, data memory (capacity: not less than 8 GB), satellite positioning module, vehicle state information acquisition module, wireless communication module, real-time clock, data acquisition interface, which may include display, printer and card reader. If the terminal has display, printer, card reader which are not included in the host, they can be listed as accessory devices, but the host shall maintain corresponding interfaces.
4.1.2 Accessory device
External devices shall include satellite positioning antenna, wireless communication antenna, emergency alarm button and voice broadcasting device. According to the basic functional requirements of different categories of vehicles in Annex A, such devices include communication devices, operation keys, card readers, printers, displays, vehicle operation status information display, information release and other devices, as well as information acquisition devices for images, videos, audio, driver's identity, electronic travel permit, logistics, operation, toll settlement and service evaluation, etc.
4.2 Appearance
The appearance of terminals shall be free of rust, rust spots, cracks, fading, stains, deformation, peeling of plating and coating, obvious scratches or burrs; the plastic parts shall be free of blistering, cracking or deformation; the structural parts and control components shall be complete and free from mechanical damage.
4.3 Nameplate
Terminals shall have a nameplate with clear and durable markings. The nameplate shall be mounted in an obvious position on the outer surface of the host, and the size of the nameplate shall be suitable for the structural size of the host.
The nameplate shall bear the following information:
a) product name, specification and model;
b) name and trademark of terminal manufacturer;
c) end of-manufacturing date and number;
d) implementation standard reference to terminals;
e) terminal IMEI No.
4.4 Characters, graphics and markings
The terminals shall be provided with instructions for use. The buttons, interfaces and other parts of the panel shall be provided with characters, graphics and other markings, and meet the following requirements:
a) Durable and eye-catching;
b) The characters in the instructions for use, nameplates and markings shall be in Chinese, which may be accompanied with other languages as necessary. In that case, make sure Chinese characters are on the top or left side of other languages.
4.5 Material
The material shall meet the requirements of non-toxicity and non-radioactivity.
4.6 Casing protection
When the host does not contain display, printer or card reader, the casing shall be protected as required by IP53 in GB/T 4208; when the host includes display, printer, card reader and other devices or one of them, the casing shall be protected as required by IP43 in GB/T 4208; the casing of trailer terminals shall be protected as required by IP67 in GB/T 4208.
5 Functional requirements
5.1 Self-test
The terminals shall have self-test function, and shall be able to clearly indicate its current main state through signal lamp or display screen, including the working state of satellite positioning and communication modules, the state of main power supply, the state of satellite positioning antenna, and the state of other devices connected with the terminal host. The terminal shall be able to perform self-test at the preset frequency, which should be set by the monitoring centre. In case of failure, information such as failure types shall be indicated by signal lamp or display screen, stored and uploaded to the monitoring centre.
5.2 Positioning
5.2.1 Positioning function
The positioning function of terminals includes the followings:
a) The terminals shall be able to provide real-time positioning status information such as time, longitude, latitude, speed, elevation and direction, which can be stored inside the terminals and uploaded to the monitoring centre through wireless communication, with the differential positioning function optional;
b) The terminals that support multiple satellite positioning modes shall be able to upload the current positioning mode and support positioning based on the satellite positioning mode designated by the monitoring centre;
c) The terminal shall be able to store not less than 10,000 pieces of positioning data in a first-in-first-out (FIFO) mode when communication is interrupted (in blind zone), and upload the stored positioning data after communication is resumed, if needed, in a compressed mode;
d) The terminals shall support uploading positioning data at an interval of time or distance, or in external event triggering mode. When the terminal is in sleep state, the terminal shall also upload positioning data at a certain interval of time or distance that may be set by the monitoring centre;
e) The terminals using BeiDou satellite positioning shall have BeiDou satellite information collection function, and shall store and report BeiDou positioning results and detailed positioning data of satellite positioning module to the monitoring centre, which should at least include signal-to-noise ratio and effective number of satellites;
f) The terminals using BeiDou satellite positioning shall be able to respond to two instructions issued by the monitoring centre, i.e. adding BeiDou information acquisition area and deleting BeiDou information acquisition area;
g) The terminals using BeiDou satellite positioning shall be able to store at least 24 rectangular areas for satellite information acquisition issued by monitoring centre. When the vehicle enters a certain rectangular area, the function of satellite signal acquisition is automatically started and uploaded at a specified frequency, and the acquisition and uploading are automatically stopped when it leaves the area;
h) The terminals using BeiDou satellite positioning shall be able to store or upload detailed positioning data such as current positioning mode and satellite signal coverage status information to the monitoring centre based on the parameter settings specified by the monitoring centre. The terminals can store at least 2,000 pieces of detailed positioning data. If the stored data exceeds the maximum capacity, the first stored data shall be discarded in temporal sequence;
i) Online upgrade and local upgrade functions of BeiDou and other GNSS satellite dual-mode positioning modules shall be supported.
5.2.2 Technical requirements for positioning
The positioning function of terminals shall meet the following technical requirements:
a) Submission at regular time interval: In the travelling state, the minimum time interval of submission is not more than 5 s, and the maximum time interval is not more than 30 s;
b) Submission at regular distance interval: In the travelling state, the minimum distance interval of submission is not more than 100 m, and the maximum distance interval is not more than 500 m;
c) Submission at regular time and distance interval: In the travelling state, the terminal can submit positioning data at the time and distance interval set by the monitoring centre;
d) Real-time positioning: The period is not more than 10 s from the terminal receiving the real-time positioning request from the monitoring centre till the terminal responding;
e) Accuracy of recording time: The permissible error of cumulative time within 24 h is within ±5 s.
5.3 Communication
5.3.1 Communication mode
The terminals shall support general CSM or CDMA mode, and can support communication modes based on TD-SCDMA, WCDMA, CDMA2000, TD-LTE, FDD-LTE, LTE-V2X and other wireless communication networks and the transmission mechanism of BeiDou Navigation Satellite System (BDS) as required. When the wireless network where the vehicle is located supports packet data transmission, the terminal shall give priority to the packet data transmission mode; otherwise, it may switch to short message mode to transmit data. When the wireless communication network cannot be connected, BeiDou communication mode may be used as needed.
5.3.2 Communication requirements
The communication requirements for terminals shall include the followings:
a) The terminals shall support at least two remote connections, namely, the connection between the main monitoring centre and the backup monitoring centre, and shall automatically switch to the backup monitoring centre when the communication with the main monitoring centre is interrupted;
b) If the terminals are unable to access the local wireless network, the data shall be stored in a FIFO mode and transmitted together until registering to the wireless network;
c) The terminals shall support the functions of receiving and sending data in batches and continuous transmission of breakpoints;
d) Encryption measures should be taken for communication between terminal and monitoring centre.
5.4 Information acquisition
5.4.1 Driver’s identity
The driver identification device of the terminal shall meet the requirements of JT/T 825, and support acquiring the qualification certificate information through remote authentication after encryption and uploading it to the monitoring centre.
The terminals shall be able to automatically detect the action of replacing the driver's IC card qualification certificate, and realize the corresponding driver identification function.
5.4.2 Electronic travel permit
The electronic travel permit for dangerous goods transport shall meet the requirements of JT/T 617.5, and the terminals shall be able to receive the electronic travel permit information sent to the terminals by the dangerous goods transport enterprise through encryption or digital identity authentication.
5.4.3 Vehicle CAN bus data
A terminal shall have two built-in CAN bus communication interfaces, and acquire information on vehicle running state through CAN bus.
5.4.4 Vehicle loading state
The terminals can be provided with the interface of vehicle loading state detection device; alternatively, the vehicle loading state can be determined by manual input and uploaded to the monitoring centre.
5.4.5 Toll settlement data
The terminal can be provided with an interface of toll settlement data acquisition device, which supports acquiring toll settlement information and uploading it to the monitoring centre.
5.4.6 Image information
The terminals can be provided with the functions of image information acquisition and storage; support the functions of image information acquisition, storage, uploading, retrieval & uploading through the control of monitoring centre, timing and event triggering; and support the export of image information through USB interface. Image information acquisition shall meet the following requirements:
a) It supports at least two cameras;
b) The cameras support infrared light supplement;
c) It sets at least two imaging resolutions, with the highest resolution of not less than 720P and the lowest of not less than D1;
d) The minimum acquisition interval is 5 s;
e) The current date and time can be displayed in the image (24-hour time system) in the format of yyyy-mm-dd hh: mm: ss;
f) It supports the storage of images in JPEG format at least;
g) It stores at least 2,000 images in a FIFO mode;
h) It supports marking the image data, which shall not be overwritten.
5.4.7 Video information
The terminals can be provided with the functions of video information acquisition and storage; support the functions of image information acquisition, compression, storage, uploading, retrieval & uploading through the control of monitoring centre and event triggering; support the real-time uploading of video data; and support the export of video data through local data interface. Video information acquisition shall meet the following requirements:
a) Support at least two cameras;
b) It can set at least two imaging resolutions, with the highest resolution of not less than 720P;
c) The frame rate of locally stored video is not less than 25 FPS, and the frame rate of uploaded video is not less than 15 FPS;
d) The current date and time can be displayed in the video (24-hour time system) in the format of yyyy-mm-dd hh: mm: ss;
e) The video acquisition coding format is H.264 or H.265;
f) It can store at least 48 h of video data;
g) It supports marking the video data, which shall not be overwritten.
5.4.8 Vehicle state information
The terminal shall support acquiring information such as switch quantity and analog quantity of the vehicle, including braking, left steering, right steering, passing beam and driving beam. At least 5 switch quantities and 2 analog quantities shall be acquired, and the acquired information shall be uploaded to the monitoring centre together with the positioning data.
5.5 Travelling data record
The terminals shall have the function of automobile travelling data record, and provide data analysis software, which supports the functions of real-time uploading of travelling data record, conditional retrieval uploading and data interface export. The data analysis software, function of terminal travelling data record and storage performance shall meet the requirements of GB/T 19056.
5.6 Monitoring
The terminals may have the function of monitoring through the circuit domain or data link, and the speaker shall be turned off when monitoring. When monitoring through the circuit domain, the following requirements shall be met:
a) After the monitoring centre sends the monitoring instruction, the terminals automatically dial the monitoring number carried by the monitoring instruction to enter the monitoring state;
b) Save data to be uploaded during monitoring and upload it after monitoring;
c) In the case of manual alarm, terminals without image, audio and video acquisition functions automatically dial a preset monitoring number to enter the monitoring state;
d) When the terminals dial the monitoring number, dial another three times at an interval of 30 s, in the case of not getting through for the first time.
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5.7 Calls
The terminals can provide calls through circuit domain or data link, including call restriction, voice storage, telephone directory management, telephone callback, volume adjustment, and automatic off-hook of incoming calls. The function of terminal call shall meet the following requirements:
a) The data to be uploaded shall be saved for a call through circuit domain, and uploaded after the call is ended;
b) The terminal telephone directory shall be provided with a storage capacity of not less than 20 contacts;
c) The terminal may be set by the monitoring centre to allow only incoming calls and only outgoing calls.
5.8 Sleep
The terminal shall be provided with the function of vehicle start-up detection (except trailer terminals). One hour after the vehicle stalled, the terminal sends a terminal sleep signal to the monitoring centre, enters the sleep state, and ends the sleep state after the next start-up. The terminal in sleeping shall meet the following requirements:
a) Turn off other unnecessary devices except the wireless communication module, and automatically wake the satellite positioning module when uploading is required;
b) The data upload frequency may be remotely set by the monitoring centre or automatically and continuously reduced according to the parameters set during initialization;
c) After the battery undervoltage alarm, the terminal turns to the built-in standby battery for power supply, and automatically powers off when the built-in standby battery is run out;
d) The average power of the terminal during the sleep period does not exceed 1.5 W.
5.9 Warning
5.9.1 General requirements
When the terminal triggers the warning, it shall immediately upload the warning information to the monitoring centre or send the short message about warning information to the designated mobile phone as needed, and can receive the instruction from the monitoring centre to cancel the warning. The warning mobile phone number may be set remotely by the monitoring centre. When the monitoring centre sends instructions to the terminal based on the vehicle position, state information or safety supervision needs uploaded by the vehicle, the terminal shall prompt the driver about the warning information by voice broadcasting, which may be combined with sound, light and text. Terminal warning function includes two parts, manual alarm and automatic reminder.
5.9.2 Manual alarm
Manual alarm is triggered by the driver according to the actual situation on site. When encountering emergency including robbery, traffic accident and vehicle breakdown, the driver uploads alarm information to the monitoring centre by touching the emergency alarm button, while turning off the voice broadcasting module. If the terminal is provided with the image and video acquisition function, it shall be enabled immediately. Where there is no mobile communication signal, the terminal with BDS communication function may upload alarm information by sending send short message through the system. Manual alarm shall be provided with the function of preventing misoperation.
5.9.3 Automatic reminder
Automatic reminder means that the driver does not operate the terminal, and it is triggered according to the conditions set by the monitoring centre, including the following functions:
a) Area reminder: There shall not be less than 24 polygonal or circular areas stored in the terminal. And the reminder will be triggered when the vehicle enters or exits the forbidden areas, and the monitoring area may be set remotely by the monitoring centre.
b) Reminder about restricted period: It may be triggered in the terminal according to the preset restricted period or by receiving the information sent by the monitoring centre to warn the driver that he or she is currently driving in the restricted period. The default restricted period is 2:00 am to 5:00 am.
c) Route deviation reminder: There shall not be less than 24 routes stored in the terminal, and each route shall be a broken line covering 16 or more points. It will be triggered when the vehicle deviates from the set route, and the route to be monitored may be set remotely by the monitoring centre.
d) Overspeed reminder: The terminal shall trigger the reminder according to the preset speed threshold or by receiving the information from the monitoring centre.
e) Drowsy driving reminder: It is triggered when the single continuous driving time and cumulative driving time exceed the drowsy driving time threshold, which may be set remotely by the monitoring centre. The default single continuous driving time is 4 h, and the default cumulative driving time is 8 h.
f) Battery under-voltage reminder: It is triggered when the terminal detects that the battery voltage of the vehicle is lower than the preset value. At the same time, the terminal must stop tapping into the power supply from the vehicle battery but turn to the built-in standby battery for power supply.
g) Power-off reminder: It is triggered when the main power supply for the terminal is turned off.
h) Antenna disconnection reminder: It is triggered when the terminal satellite positioning antenna is cut.
i) Overtime parking reminder: It is triggered when the parking time exceeds the preset duration in the system.
j) Terminal fault reminder: It is triggered when the terminal host and the external devices connected with the terminal host work abnormally, and uploaded to the monitoring centre.
k) Tyre pressure abnormality reminder: Communication between the terminal and the vehicle tyre pressure monitoring system is available, and the terminal can receive and upload information about the tyre pressure abnormality reminder.
l) Rollover reminder: It is triggered when the vehicle is rolled over.
m) Collision reminder: It is triggered when there is a collision accident.
n) Unsafe driving behavior reminder: Communication between the terminal and the system of monitoring on driver's unsafe driving behavior is available, and the terminal receives and uploads the reminder information about the driver's unsafe driving behavior, e.g., smoking, speaking on the phone, distraction and dozing off.
o) Right-turning blind zone abnormality reminder: Communication between the terminal and the right-turning blind zone monitoring system is available. When the vehicle turns right, whereas there are pedestrians, non-motor vehicles or other motor vehicles in the right-turning blind zone, the terminal receives and uploads the information.
Foreword i
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 General requirements
5 Functional requirements
6 Performance requirements
7 Installation requirements
8 Inspection rules
Annex A (Normative) Basic functional requirements of various transport vehicle terminals
道路運(yùn)輸車輛衛(wèi)星定位系統(tǒng) 車載終端技術(shù)要求
1 范圍
本標(biāo)準(zhǔn)規(guī)定了道路運(yùn)輸車輛衛(wèi)星定位系統(tǒng)車載終端的一般要求，功能，性能和安裝要求，以及檢驗(yàn)規(guī)則。
本標(biāo)準(zhǔn)適用于道路運(yùn)輸車輛衛(wèi)星定位系統(tǒng)中安裝在車輛上的車載終端設(shè)備。
2 規(guī)范性引用文件
下列文件對于本標(biāo)準(zhǔn)的應(yīng)用是必不可少的。凡是注日期的引用文件，僅注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本(包括所有的修改單)適用于本文件。
GB／T 4208 外殼防護(hù)等級(IP代碼)
GB／T 19056 汽車行駛記錄儀
GB／T 19951-2005 道路車輛 靜電放電產(chǎn)生的電騷擾試驗(yàn)方法
GB／T 21437.2-2008 道路車輛 由傳導(dǎo)和耦合引起的電騷擾 第2部分：沿電源線的電瞬態(tài)傳導(dǎo)
GB／T 21437.3-2012 道路車輛 由傳導(dǎo)和耦合引起的電騷擾 第3部分：除電源線外的導(dǎo)線通過容性和感性耦合的電瞬態(tài)發(fā)射
GB／T 28046.1 道路車輛 電氣及電子設(shè)備的環(huán)境條件和試驗(yàn) 第1部分：一般規(guī)定
GB／T 28046.3-2011 道路車輛 電氣及電子設(shè)備的環(huán)境條件和試驗(yàn) 第3部分：機(jī)械負(fù)荷
JT／T 617.5 危險(xiǎn)貨物道路運(yùn)輸規(guī)則 第5部分：托運(yùn)要求
JT／T 766-2009 北斗衛(wèi)星導(dǎo)航系統(tǒng)船舶監(jiān)測終端技術(shù)要求
JT／T 825 IC卡道路運(yùn)輸證件
QC／T 1067.1 汽車電線束和電氣設(shè)備用連接器 第1部分：定義、試驗(yàn)方安和一般性能要求
GB／T 31465.3 道路車輛 熔斷器 第3部分：片式容斷器
QC／T 414 汽車電線(電纜)的顏色規(guī)定和型號編制方法
YD／T 1050 800MHzC DMA數(shù)字蜂窩移動(dòng)通信網(wǎng)設(shè)備總測試規(guī)范：移動(dòng)臺(tái)部分
YD／T 1214 900／180OMHzTDMA數(shù)字蜂窩移動(dòng)通信網(wǎng)通用分組無線業(yè)務(wù)(GPRS) 設(shè)備技術(shù)要求：移動(dòng)臺(tái)
YD／T 1367 2GHzTD-SCDMA數(shù)字蜂窩移動(dòng)通信網(wǎng)終端設(shè)備技術(shù)要求
YD／T 1547 2GHzWCDMA數(shù)字蜂窩移動(dòng)通信網(wǎng)終端設(shè)備技術(shù)要求(第三階段)
YD／T 1558 800MHz／2GHzcdma2000數(shù)字蜂窩移動(dòng)通信網(wǎng)設(shè)備技術(shù)要求移動(dòng)臺(tái)(含機(jī)卡一體)
YD／T 2575 TD-LTE數(shù)字蜂窩移動(dòng)通信網(wǎng)終端設(shè)備技術(shù)要求(第一階段)
YD／T 2577 LTE FDD數(shù)字蜂窩移動(dòng)通信網(wǎng)終端設(shè)備技術(shù)要求(第一階段)
3 術(shù)語和定義、縮略語
3.1 術(shù)語和定義
下列術(shù)語和定義適用于本文件。
3.1.1
固件 firmware
運(yùn)行在終端微處理器中的嵌入式軟件。
3.1.2
電子運(yùn)單 electronic travel permit
包含車輛信息和客貨信息等的電子數(shù)據(jù)。
3.1.3
行駛開始時(shí)間 start time of travelling
車輛從靜止?fàn)顟B(tài)轉(zhuǎn)變?yōu)樾旭偁顟B(tài)(速度大于0km／h且持續(xù)10s以上)的時(shí)間。
3.1.4
有效停車 effective parking
車輛從行駛狀態(tài)轉(zhuǎn)變?yōu)殪o止?fàn)顟B(tài)(速度等于0km／h)且持續(xù)時(shí)間不少于20min。
3.1.5
單次連續(xù)駕駛時(shí)間 single continuous driving time
同一駕駛?cè)藦谋敬涡旭傞_始時(shí)間起至有效停車開始時(shí)間之間的時(shí)間。
3.1.6
累計(jì)駕駛時(shí)間 cumulative driving time
同一駕駛?cè)?4h內(nèi)單次連續(xù)駕駛時(shí)間的總和。
3.1.7
監(jiān)控中心 monitoring centre
對車輛道路運(yùn)輸進(jìn)行監(jiān)控的軟件平臺(tái)。
3.1.8
休眠 sleep
車輛熄火后，終端繼續(xù)保持與監(jiān)控中心聯(lián)系的一種特殊狀態(tài)。
3.2 縮略語
下列縮略語適用于本文件。
CAN——控制器局域網(wǎng)絡(luò)(Controller Area Network)
IMEI——國際移動(dòng)設(shè)備識別碼(International Mobile Equipment Identity)
GSM——全球移動(dòng)通信系統(tǒng)(Global System for Mobile Communication)
CDMA——碼分多址(Code Division Multiple Access)
TD-SCDMA——時(shí)分同步碼分多址(Time Division-Synchronous Code Division Multiple Access)
WCDMA——寬帶碼分多址(Wideband Code Division Multiple Access)
CDMA2000——碼分多址2000(Code Division Multiple Access 2000)
TD-LTE——分時(shí)長期演進(jìn)(Time Division-Long Term Evolution)
FDD-LTE——頻分雙工長期演進(jìn)(Frequency Division Duplexing-Long Term Evolution)
LTE-V2X——基于長期演進(jìn)的車聯(lián)網(wǎng)通信(Long Term Evolution-Vehicle to Everything)
JPEG——聯(lián)合圖像專家小組(Joint Photographic Experts Group)
ETC——電子不停車收費(fèi)系統(tǒng)( Electronic Toll Collection)
4 一般要求
4.1 車載終端組成
4.1.1 主機(jī)
車載終端(以下簡稱“終端”)主機(jī)應(yīng)包括微處理器，數(shù)據(jù)存儲(chǔ)器(容量不低于8 GB)、衛(wèi)星定位模塊、車輛狀態(tài)信息采集模塊、無線通信模塊、實(shí)時(shí)時(shí)鐘、數(shù)據(jù)采集接口等，可包括顯示器、打印機(jī)，讀卡器。如果終端具有顯示器、打印機(jī)、讀卡器且不包含于主機(jī)本體上，則其可列為附屬設(shè)備，但主機(jī)應(yīng)留有相應(yīng)接口。
4.1.2 附屬設(shè)備
外部設(shè)備應(yīng)包括衛(wèi)星定位天線、無線通信天線、應(yīng)急報(bào)警按鈕，語音報(bào)讀裝置。應(yīng)根據(jù)附錄A對不同類型車輛的基本功能要求包括通話裝置、操作鍵、讀卡器、打印機(jī)、顯示器、車輛營運(yùn)狀態(tài)信息顯示、信息發(fā)布等設(shè)備，以及圖像、視頻、音頻、駕駛員身份、電子運(yùn)單、物流、營運(yùn)、收費(fèi)結(jié)算、服務(wù)評價(jià)等信息的采集設(shè)備等。
4.2 外觀
終端的外觀應(yīng)無銹蝕、銹斑、裂紋、褪色、污跡、變形、鍍涂層脫落，亦無明顯劃痕、毛刺；塑料件應(yīng)無起泡、開裂、變形；灌注物應(yīng)無溢出等現(xiàn)象；結(jié)構(gòu)件與控制組件應(yīng)完整，無機(jī)械損傷。
4.3 銘牌
終端應(yīng)有清晰耐久的銘牌標(biāo)志。銘牌應(yīng)安裝在主機(jī)外表面的顯著位置，銘牌尺寸應(yīng)與主機(jī)結(jié)構(gòu)尺寸相適宜。
銘牌應(yīng)包括下列內(nèi)容：
a) 終端名稱、規(guī)格及型號；
b) 終端制造廠名及商標(biāo)；
c) 終端出廠年月及編號；
d) 終端執(zhí)行標(biāo)準(zhǔn)代號；
e) 終端IMEI號。
4.4 文字、圖形和標(biāo)志
終端應(yīng)有使用說明。面板的按鍵、接口等部位應(yīng)有文字、圖形等標(biāo)志，并應(yīng)滿足以下要求：
a) 耐久，醒目；
b) 使用說明、銘牌和標(biāo)志中的文字應(yīng)使用中文，根據(jù)需要也可以同時(shí)使用其他文字，但應(yīng)保證中文在其他文字的上面或左面。
4.5 材質(zhì)
應(yīng)符合無毒害、無放射性的要求。
4.6 機(jī)殼防護(hù)
當(dāng)主機(jī)不包含顯示器、打印機(jī)和讀卡器時(shí)，機(jī)殼防護(hù)應(yīng)滿足GB／T 4208中IP53的等級要求；當(dāng)主機(jī)包含顯示器、打印機(jī)、讀卡器等設(shè)備或其中之一時(shí)，機(jī)殼防護(hù)應(yīng)滿足GB／T 4208中IP43的等級要求；掛車終端機(jī)殼防護(hù)應(yīng)滿足GB／T 4208中IP67的等級要求。
5 功能要求
5.1 自檢
終端應(yīng)具備自檢功能，應(yīng)能通過信號燈或顯示屏明確表示終端當(dāng)前主要狀態(tài)，包括衛(wèi)星定位及通信模塊工作狀態(tài)、主電源狀態(tài)、衛(wèi)星定位天線狀態(tài)，與終端主機(jī)相連的其他設(shè)備狀態(tài)等。終端應(yīng)能以預(yù)設(shè)的頻率進(jìn)行自檢，自檢頻率宜由監(jiān)控中心設(shè)定。若出現(xiàn)故障，應(yīng)通過信號燈或顯示屏顯示方式指示故障類型等信息，存儲(chǔ)并上傳至監(jiān)控中心。
5.2 定位
5.2.1 定位功能
終端的定位功能包括以下內(nèi)容：
a) 終端應(yīng)能提供實(shí)時(shí)的時(shí)間、經(jīng)度、緯度、速度、高程和方向等定位狀態(tài)信息，可存儲(chǔ)到終端內(nèi)部，同時(shí)通過無線通信方式上傳至監(jiān)控中心，差分定位功能為可選；
b) 如終端支持多種衛(wèi)星定位模式，終端應(yīng)能上傳當(dāng)前采用的定位模式，并支持按監(jiān)控中心指定的衛(wèi)星定位模式定位；
c) 終端應(yīng)能在通信中斷時(shí)(盲區(qū))以先進(jìn)先出方式存儲(chǔ)不少于10 000條定位信息，在恢復(fù)通信后將存儲(chǔ)的定位信息補(bǔ)報(bào)上傳，可根據(jù)需要采用壓縮方式上傳；
d) 終端應(yīng)支持時(shí)間、距離間隔或外部事件觸發(fā)方式上傳定位信息，當(dāng)終端處于休眠狀態(tài)時(shí)也應(yīng)以一定時(shí)間間隔上傳定位信息，且時(shí)間和距離的間隔可由監(jiān)控中心設(shè)定；
e) 采用北斗衛(wèi)星定位的終端應(yīng)具有北斗衛(wèi)星信息采集功能，應(yīng)存儲(chǔ)并向監(jiān)控中心上報(bào)北斗定位結(jié)果及衛(wèi)星定位模塊詳細(xì)定位數(shù)據(jù)，應(yīng)至少包含信噪比、有效衛(wèi)星數(shù)；
f) 采用北斗衛(wèi)星定位的終端應(yīng)能響應(yīng)監(jiān)控中心下發(fā)的添加北斗信息采集區(qū)域和刪除北斗信息采集區(qū)域兩種指令；
g) 采用北斗衛(wèi)星定位的終端應(yīng)能存儲(chǔ)至少24個(gè)監(jiān)控中心下發(fā)的衛(wèi)星信息采集的矩形區(qū)域，當(dāng)車輛駛?cè)肽尘匦螀^(qū)域時(shí)自動(dòng)啟動(dòng)衛(wèi)星信號采集功能并按照指定頻率上傳，駛出區(qū)域時(shí)自動(dòng)停止采集和上傳；
h) 采用北斗衛(wèi)星定位的終端應(yīng)能按照監(jiān)控中心指定的參數(shù)設(shè)置將當(dāng)前定位模式、衛(wèi)星信號覆蓋狀態(tài)信息等詳細(xì)定位數(shù)據(jù)存儲(chǔ)或上傳至監(jiān)控中心。終端能夠存儲(chǔ)至少2 000條詳細(xì)定位數(shù)據(jù)，如果保存數(shù)據(jù)超過最大容量時(shí)，應(yīng)按時(shí)間順序?qū)⒆钕缺４娴臄?shù)據(jù)丟棄；
i) 應(yīng)支持對北斗及其他GNSS衛(wèi)星雙模定位模塊的在線升級和本地升級功能。
5.2.2 定位技術(shù)要求
終端的定位功能應(yīng)滿足以下技術(shù)要求：
a) 定時(shí)報(bào)送：在行駛狀態(tài)下，最小報(bào)送時(shí)間間隔不大于5s，最大報(bào)送時(shí)間間隔不大于30s；
b) 定距報(bào)送：在行駛狀態(tài)下，最小報(bào)送距離不大于100m，最大報(bào)送距離不大于500m；
c) 定時(shí)定距報(bào)送：在行駛狀態(tài)下，終端可按監(jiān)控中心設(shè)置的時(shí)間、距離間隔上報(bào)定位數(shù)據(jù)；
d) 實(shí)時(shí)定位：從終端收到監(jiān)控中心下發(fā)的實(shí)時(shí)定位請求到終端應(yīng)答，時(shí)間不大于10s；
e) 記錄時(shí)間精度：24h 內(nèi)累計(jì)時(shí)間允許誤差在±5s以內(nèi)。
5.3 通信
5.3.1 通信方式
終端應(yīng)支持通用CSM或CDMA模式，可根據(jù)需要支持基于TD-SCDMA、WCDMA、CDMA2000、TD-LTE、FDD-LTE、LTE-V2X等多種無線通信網(wǎng)絡(luò)以及北斗衛(wèi)星導(dǎo)航系統(tǒng)傳輸機(jī)制下的通信模式。當(dāng)車輛所在地?zé)o線網(wǎng)絡(luò)支持分組數(shù)據(jù)傳輸時(shí)，終端應(yīng)優(yōu)先選擇分組數(shù)據(jù)傳輸方式；當(dāng)所在地不支持分組數(shù)據(jù)傳輸時(shí)，可切換到短消息方式傳送數(shù)據(jù)；當(dāng)所在地?zé)o線通信網(wǎng)絡(luò)不通時(shí)，可根據(jù)需要采用北斗通信方式。
5.3.2 通信要求
終端的通信要求應(yīng)包括以下內(nèi)容：
a) 終端應(yīng)支持至少兩個(gè)遠(yuǎn)程連接，即主監(jiān)控中心和備份監(jiān)控中心的連接，應(yīng)在與主監(jiān)控中心通信中斷時(shí)自動(dòng)切換至備份監(jiān)控中心；
b) 如果終端無法接入到所在地的無線網(wǎng)絡(luò)時(shí)，應(yīng)將數(shù)據(jù)以先進(jìn)先出方式保存，直至注冊到無線網(wǎng)絡(luò)時(shí)一并傳送；
c) 終端應(yīng)支持?jǐn)?shù)據(jù)批量接收與發(fā)送功能、斷點(diǎn)續(xù)傳功能；
d) 終端與監(jiān)控中心的通信宜采取加密措施。
5.4 信息采集
5.4.1 駕駛員身份
終端的駕駛員身份識別裝置應(yīng)符合JT／T 825的要求，支持加密后通過遠(yuǎn)程認(rèn)證的方式采集從業(yè)資格證信息并上傳至監(jiān)控中心。
終端應(yīng)能夠自動(dòng)偵測更換駕駛員IC卡從業(yè)資格證動(dòng)作，并實(shí)現(xiàn)相應(yīng)的駕駛員身份識別功能。
5.4.2 電子運(yùn)單
危險(xiǎn)貨物運(yùn)輸電子運(yùn)單應(yīng)符合JT／T 617.5的要求，終端應(yīng)能接收危險(xiǎn)貨物運(yùn)輸企業(yè)采用加密或數(shù)字身份認(rèn)證方式向終端下發(fā)的電子運(yùn)單信息。
5.4.3 車輛CAN總線數(shù)據(jù)
終端應(yīng)具有兩路內(nèi)置CAN總線通信接口，通過CAN總線采集車輛運(yùn)行狀態(tài)信息。
5.4.4 車輛載運(yùn)狀態(tài)
終端可具有車輛載運(yùn)狀態(tài)檢測裝置接口或者通過人工輸入方式確定車輛的載運(yùn)狀態(tài)，并上傳至監(jiān)控中心。
5.4.5 收費(fèi)結(jié)算數(shù)據(jù)
終端可具有收費(fèi)結(jié)算數(shù)據(jù)采集裝置接口，支持采集收費(fèi)結(jié)算信息，并上傳至監(jiān)控中心。
5.4.6 圖像信息
終端可具有圖像信息采集及存儲(chǔ)功能，支持監(jiān)控中心控制、定時(shí)和事件觸發(fā)方式實(shí)現(xiàn)圖像信息的采集、存儲(chǔ)、上傳及檢索上傳功能；支持通過USB接口對圖像信息的導(dǎo)出。圖像信息采集應(yīng)滿足以下要求：
a) 至少支持兩路攝像頭；
b) 攝像頭支持紅外補(bǔ)光；
c) 設(shè)置至少兩種成像分辨率，最高分辨率不低于720P，最低分辨率不低于D1；
d) 最小采集間隔為5s；
e) 圖像中能顯示當(dāng)前的日期與時(shí)間(24小時(shí)制)，格式為：yyyy-mm-dd hh：mm：ss；
f) 至少支持以JPEG格式存儲(chǔ)圖像；
g) 以先進(jìn)先出方式至少存儲(chǔ)2 000張圖像；
h) 支持對圖像數(shù)據(jù)標(biāo)記，該類圖像不應(yīng)被覆蓋。
5.4.7 視頻信息
終端可具有視頻信息采集及存儲(chǔ)功能，支持監(jiān)控中心控制和事件觸發(fā)方式實(shí)現(xiàn)視頻信息的采集、壓縮、存儲(chǔ)、上傳及檢索上傳功能；支持視頻數(shù)據(jù)的實(shí)時(shí)上傳；支持通過本地?cái)?shù)據(jù)接口對視頻數(shù)據(jù)的導(dǎo)出。視頻信息采集應(yīng)滿足以下要求：
a) 至少支持兩路攝像頭；
b) 能設(shè)置至少兩種成像分辨率，最高分辨率不低于720P；
c) 本地存儲(chǔ)視頻幀率不低于25FPS，上傳視頻幀率不低于15FPS；
d) 視頻中能顯示當(dāng)前的日期與時(shí)間(24小時(shí)制)，格式為：yyyy-mm-dd hh：mm：ss；
e) 視頻采集編碼格式為H.264或H.265；
f) 至少能存儲(chǔ)48h的視頻數(shù)據(jù)；
g) 支持對視頓數(shù)據(jù)標(biāo)記，該視頻數(shù)據(jù)不應(yīng)被覆蓋。
5.4.8 車輛狀態(tài)信息
終端應(yīng)支持采集車輛的開關(guān)量和模擬量等信息，包括制動(dòng)，左轉(zhuǎn)向、右轉(zhuǎn)向，近光、遠(yuǎn)光等。應(yīng)采集至少5個(gè)開關(guān)量和至少2個(gè)模擬量，并將采集的信息與定位數(shù)據(jù)一起上傳至監(jiān)控中心。
5.5 行駛記錄
終端應(yīng)具有汽車行駛記錄功能，并提供數(shù)據(jù)分析軟件，支持行駛記錄數(shù)據(jù)的實(shí)時(shí)上傳、條件檢索上傳和數(shù)據(jù)接口導(dǎo)出功能。數(shù)據(jù)分析軟件、終端行駛記錄功能及存儲(chǔ)性能應(yīng)符合GB／T 19056的要求。
5.6 監(jiān)聽
終端可具有通過電路域或數(shù)據(jù)鏈路進(jìn)行監(jiān)聽的功能，監(jiān)聽時(shí)揚(yáng)聲器應(yīng)處于關(guān)閉狀態(tài)。通過電路域監(jiān)聽時(shí)，應(yīng)滿足以下要求：
a) 監(jiān)控中心下發(fā)監(jiān)聽指令后，終端自動(dòng)撥打監(jiān)聽指令攜帶的監(jiān)聽號碼進(jìn)入監(jiān)聽狀態(tài)；
b) 監(jiān)聽時(shí)保存需要上傳的數(shù)據(jù)，監(jiān)聽結(jié)束后上傳；
c) 人工報(bào)警時(shí)，圖像、音頻和視頻采集功能均不具備的終端自動(dòng)撥打預(yù)先設(shè)定的監(jiān)聽號碼進(jìn)入監(jiān)聽狀態(tài)；
d) 終端撥打監(jiān)聽號碼時(shí)，在首次未打通情況下，再連續(xù)撥打三次，每次間隔30s。
5.7 通話
終端可具有電路域或數(shù)據(jù)鏈路通話功能，包括通話限制、語音存儲(chǔ)、電話簿管理、電話回?fù)堋⒁袅空{(diào)節(jié)、來電自動(dòng)摘機(jī)。終端通話功能滿足以下要求：
a) 采用電路域通話時(shí)應(yīng)將需要上傳的數(shù)據(jù)保存，通話結(jié)束后上傳；
b) 終端電話簿應(yīng)具有不少于20名聯(lián)系人的存儲(chǔ)容量；
c) 終端可由監(jiān)控中心設(shè)定只允許呼入號碼和只允許呼出號碼。
5.8 休眠
終端應(yīng)具有車輛啟動(dòng)點(diǎn)火檢測功能(掛車終端除外)，當(dāng)車輛熄火1h后終端向監(jiān)控中心發(fā)送終端休眠信號，進(jìn)入休眠狀態(tài)，并在下次車輛啟動(dòng)后退出休眠狀態(tài)。終端在休眠狀態(tài)下應(yīng)滿足以下要求：
a) 關(guān)閉除無線通信模塊外其他不必要設(shè)備，衛(wèi)星定位模塊在需要上傳時(shí)自動(dòng)喚醒；
b) 數(shù)據(jù)上傳頻率可由監(jiān)控中心遠(yuǎn)程設(shè)置或按照初始化時(shí)設(shè)置的參數(shù)自動(dòng)持續(xù)降低數(shù)據(jù)上傳頻率；
c) 終端在蓄電池欠壓報(bào)警后，轉(zhuǎn)由內(nèi)置備用蓄電池供電，在內(nèi)置備用蓄電池電量用完時(shí)自動(dòng)關(guān)機(jī)；
d) 終端在休眠期間平均功率不超過1.5W。
5.9 警示
5.9.1 一般要求
終端觸發(fā)警示時(shí)應(yīng)立即向監(jiān)控中心上傳警示信息或根據(jù)需要向指定手機(jī)發(fā)送短消息警示信息，并能接收監(jiān)控中心指令取消警示。警示手機(jī)號碼可由監(jiān)控中心遠(yuǎn)程設(shè)置。當(dāng)監(jiān)控中心依據(jù)車輛上傳的車輛位置信息、狀態(tài)信息或者安全監(jiān)管需要向終端下指令時(shí)，終端應(yīng)以語音報(bào)讀方式，可結(jié)合聲、光、文字等方式向駕駛員提示警示信息。終端警示功能分為人工報(bào)警與自動(dòng)提醒。
5.9.2 人工報(bào)警
人工報(bào)警是駕駛員根據(jù)現(xiàn)場實(shí)際情況觸發(fā)的報(bào)警，當(dāng)遇到搶劫、交通事故、車輛故障等緊急情況時(shí)，駕駛員通過觸動(dòng)應(yīng)急報(bào)警按鈕向監(jiān)控中心上傳報(bào)警信息，同時(shí)關(guān)閉語音報(bào)讀模塊。如果終端具有圖像、視頻采集功能，應(yīng)立即啟用該功能。若在無移動(dòng)通信信號地區(qū)，具備北斗通信功能的終端可通過北斗系統(tǒng)短消息方式上傳報(bào)警信息。人工報(bào)警應(yīng)具備防止誤操作功能。
5.9.3 自動(dòng)提醒
自動(dòng)提醒是駕駛員不對終端進(jìn)行任何操作，終端根據(jù)監(jiān)控中心設(shè)定的條件觸發(fā)，包括以下功能：
a) 區(qū)域提醒：終端中應(yīng)存儲(chǔ)有不少于24個(gè)多邊形或圓形區(qū)域，當(dāng)車輛駛?cè)虢雲(yún)^(qū)域或駛出禁出區(qū)域時(shí)觸發(fā)，監(jiān)控區(qū)域可由監(jiān)控中心遠(yuǎn)程設(shè)置。
b) 禁行時(shí)段提醒：終端可根據(jù)預(yù)設(shè)的禁行時(shí)段或通過接收監(jiān)控中心下發(fā)的信息觸發(fā)，以提醒駕駛員當(dāng)前處于禁行時(shí)段狀態(tài)，禁行時(shí)段默認(rèn)為凌晨2時(shí)至5時(shí)。
c) 路線偏離提醒：終端中應(yīng)存儲(chǔ)有不少于24條路線，每條路線應(yīng)是16個(gè)或以上點(diǎn)構(gòu)成的折線。當(dāng)車輛駛離設(shè)定的路線時(shí)觸發(fā)，監(jiān)控路線可由監(jiān)控中心遠(yuǎn)程設(shè)置。
d) 超速提醒：終端應(yīng)根據(jù)預(yù)設(shè)的速度閾值或通過接收監(jiān)控中心下發(fā)的信息觸發(fā)。
e) 疲勞駕駛提醒：車輛或者駕駛員單次連續(xù)駕駛時(shí)間、累計(jì)駕駛時(shí)間超過疲勞駕駛時(shí)間閾值時(shí)觸發(fā)，疲勞駕駛時(shí)間閾值可由監(jiān)控中心遠(yuǎn)程設(shè)置，單次連續(xù)駕駛時(shí)間默認(rèn)為4h，累計(jì)駕駛時(shí)間默認(rèn)為8h。
f) 電瓶欠壓提醒：終端檢測車輛電瓶電壓低于預(yù)設(shè)值時(shí)觸發(fā)，同時(shí)終端須停止從車輛電瓶取電，轉(zhuǎn)由終端內(nèi)置備用電池供電。
g) 斷電提醒：終端在被切斷主供電源時(shí)觸發(fā)。
h) 天線斷開提醒；終端衛(wèi)星定位天線被剪斷時(shí)觸發(fā)。
i) 超時(shí)停車提醒：停車時(shí)間超過系統(tǒng)預(yù)設(shè)時(shí)間時(shí)觸發(fā)。
j) 終端故障提醒：當(dāng)終端主機(jī)及與終端主機(jī)連接的外部設(shè)備工作異常時(shí)觸發(fā)，并上傳至監(jiān)控中心。
k) 輪胎壓力異常提醒：終端可與車輛輪胎壓力監(jiān)測系統(tǒng)進(jìn)行通信，接收并上傳輪胎壓力異常提醒信息。
l) 側(cè)翻提醒：車輛側(cè)翻時(shí)觸發(fā)。
m) 碰撞提醒：車輛發(fā)生碰撞事故時(shí)觸發(fā)。
n) 不安全駕駛行為提醒：終端可與駕駛員不安全駕駛行為監(jiān)測系統(tǒng)通信，接收并上傳駕駛員吸煙、打電話、分神、打瞌睡等不安全駕駛行為提醒信息。
o) 右轉(zhuǎn)盲區(qū)異常提醒：終端可與右轉(zhuǎn)盲區(qū)監(jiān)測系統(tǒng)通信，當(dāng)車輛右轉(zhuǎn)彎時(shí)，右轉(zhuǎn)盲區(qū)內(nèi)有行人、非機(jī)動(dòng)車或其他機(jī)動(dòng)車時(shí)，終端接收并上傳盲區(qū)異常提醒信息。
5.10 終端管理
終端管理功能應(yīng)符合以下要求：
a) 終端初始支持本地直接修改接入?yún)?shù)，對終端接入地址遠(yuǎn)程配置時(shí)，由終端本地確認(rèn)后生效；
b) 終端支持加密或數(shù)字身份認(rèn)證的無線網(wǎng)絡(luò)遠(yuǎn)程方式實(shí)現(xiàn)終端在監(jiān)控中心注冊和注銷功能、固件更新功能、固件參數(shù)的修改和查詢功能、終端的復(fù)位或恢復(fù)出廠設(shè)置功能；
c) 固件更新、參數(shù)修改過程中遇到掉電等意外情況時(shí)支持自動(dòng)恢復(fù)功能，保證更新失敗時(shí)終端能夠正常使用；
d) 固件更新和固件參數(shù)修改功能支持本地(SD卡，USB或其他數(shù)字接口)方式實(shí)現(xiàn)；
e) 終端支持通過USB口或串口對終端進(jìn)行設(shè)置和輸出。
JT/T 794-2019/XG1-2021, JT 794-2019/XG1-2021, JT 794-2019XG1-2021, JT/T794-2019/XG1-2021, JT/T 794, JT/T794, JT794-2019/XG1-2021, JT 794, JT794, JT794-2019XG1-2021, JT 794, JT794
