GPS行駛記錄儀主要功能：
1、自檢功能：
終端具備自檢功能，通過信號(hào)燈或顯示屏明確表示車載終端當(dāng)前主要狀態(tài)，包括衛(wèi)星定位及通信模塊工作狀態(tài)等。若出現(xiàn)故障，則通過信號(hào)燈或顯示屏等顯示方式顯示故障類型，儲(chǔ)存并上傳至監(jiān)控中心。
2、定位功能：
按照設(shè)定的時(shí)間間隔、的時(shí)刻點(diǎn)或者距離間隔，讓車載GPS記錄儀上報(bào)經(jīng)度、緯度、時(shí)間、速度和方向等定位狀態(tài)信息。
3、盲區(qū)補(bǔ)報(bào)功能：
終端在通信中斷時(shí)，以先出的方式存儲(chǔ)10000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。
4、通信功能：
終端支持GSM無線通信網(wǎng)絡(luò)，當(dāng)無線網(wǎng)絡(luò)不通時(shí)，
5、駕駛員身份查詢功能：
終端支持通過IC卡方式，采集駕駛員從業(yè)資格證信息，并上傳至監(jiān)控中心。
6、車輛CAN總線數(shù)據(jù)采集功能：
終端支持通過CAN總線采集車輛參數(shù)信息，并能上傳至監(jiān)控中心。
7、行駛記錄儀功能：
在必要的時(shí)候，可通過調(diào)度監(jiān)控中心給車輛發(fā)送斷油斷電指令，讓車輛無法開動(dòng)；
8、休眠功能：
終端具有車輛ACC點(diǎn)火檢測(cè)功能，當(dāng)車輛熄火后，終端向監(jiān)控中心發(fā)送車輛熄火信號(hào)并自動(dòng)進(jìn)入休眠狀態(tài)。
9、圖像信息功能：
終端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(duì)圖像信息的導(dǎo)出。
10、音頻信息功能：
終端具有音頻信息采集及存儲(chǔ)功能，支持監(jiān)控中心控制和時(shí)間觸發(fā)方式實(shí)現(xiàn)音頻信息的采集、壓縮、存儲(chǔ)、上傳及檢索上傳功能，支持通過USB接口對(duì)音頻數(shù)據(jù)的導(dǎo)出。
11、監(jiān)聽功能：
終端具有監(jiān)聽功能，監(jiān)控中心下發(fā)監(jiān)聽指令，終端撥打監(jiān)聽指令攜帶的監(jiān)聽號(hào)碼進(jìn)入監(jiān)聽。
12、路線偏離提醒功能：
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。
13、人工報(bào)警功能：
駕駛員根據(jù)實(shí)際情況觸發(fā)的報(bào)警，如搶劫、交通事故、車輛故障等緊急情況，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，若有圖像、視頻、音頻采集功能，會(huì)自動(dòng)啟動(dòng)該功能。
14、超速報(bào)警功能：
終端可根據(jù)預(yù)設(shè)的速度值或通過接收監(jiān)控中心下發(fā)的信息觸發(fā)，提醒駕駛員當(dāng)前處于超速狀態(tài)。
15、疲勞駕駛提醒功能：
車輛或駕駛員連續(xù)駕駛時(shí)間超過疲勞駕駛時(shí)間值時(shí)觸發(fā)，時(shí)間值可由監(jiān)控中心遠(yuǎn)程設(shè)置。默認(rèn)為4小時(shí)。
16、蓄電池欠壓提醒功能：
終端自動(dòng)檢測(cè)車輛蓄電池電壓低于預(yù)設(shè)值時(shí)，終端停止從車輛蓄電池中取電，轉(zhuǎn)由終端內(nèi)置備用電池供電。
17、斷電提醒功能：
終端在被切斷主供電源時(shí)觸發(fā)。
18、終端故障提醒功能：
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)，并將信息上傳至監(jiān)控中心。
19、終端管理功能：
終端能支持無線網(wǎng)絡(luò)遠(yuǎn)程方式實(shí)現(xiàn)終端在監(jiān)控中心注冊(cè)和注銷功能、固件更新和固件參數(shù)修改和查詢功能、終端復(fù)位或恢復(fù)出廠設(shè)置功能。固件更新和固件參數(shù)修改也能支持本地方式實(shí)現(xiàn)。
20、人機(jī)交互功能：
終端具有人機(jī)交互功能，與駕駛員進(jìn)行信息交互。能通過語音報(bào)讀設(shè)備與顯示設(shè)備，結(jié)合信號(hào)燈或蜂鳴器等設(shè)備向駕駛員提供信息，駕駛員也能通過按鍵或觸摸屏或遙控器等方式操作終端。
21、多中心接入功能：
終端能支持同時(shí)連接兩個(gè)或兩個(gè)以上的監(jiān)控中心，并能獲取監(jiān)控中心下發(fā)的信息，終端應(yīng)按設(shè)置的時(shí)間間隔定期連接設(shè)定的監(jiān)控中心并獲取下發(fā)的信息。

如何實(shí)現(xiàn)GPS監(jiān)控功能要實(shí)現(xiàn)GPS監(jiān)控功能具備GPS終端、傳輸網(wǎng)絡(luò)和監(jiān)控平臺(tái)三個(gè)要素，這三個(gè)要素缺一不可。通過這三個(gè)要素，組成三層結(jié)構(gòu)的監(jiān)控系統(tǒng)，應(yīng)用在車輛調(diào)度監(jiān)控領(lǐng)域，可以提供車輛防盜、反劫、行駛路線監(jiān)控及呼叫指揮等功能；應(yīng)用在對(duì)人寵物的跟蹤領(lǐng)域，可以提供對(duì)老人、小孩及寵物的跟蹤、老人、小孩遇到突發(fā)事件時(shí)的求救等功能。GPS監(jiān)控的三個(gè)要素為：GPS終端、監(jiān)控平臺(tái)、傳輸網(wǎng)絡(luò)等。
　　GPS終端
　　GPS終端是GPS監(jiān)控系統(tǒng)的前端設(shè)備，一般隱秘地安裝在各種車輛內(nèi)或佩帶在人或?qū)櫸锷砩希珿PS終端設(shè)備主要由主CPU、GPS模塊、GPRS模塊、I/O接口及外圍電路組成。
　　監(jiān)控平臺(tái)
　　監(jiān)控平臺(tái)是GPS監(jiān)控的核心，是遠(yuǎn)程可視指揮和監(jiān)控管理平臺(tái)，一旦在車輛上安裝GPS監(jiān)控設(shè)備或者在人身上佩帶了GPS監(jiān)控設(shè)備，設(shè)備上的GPS模塊會(huì)實(shí)時(shí)地將車或人的位置信息通過無線網(wǎng)絡(luò)發(fā)送到監(jiān)控中心，在監(jiān)控中心的電子地圖上可以看到車輛、人或?qū)櫸锼诘闹庇^位置，監(jiān)控中心可通過無線網(wǎng)絡(luò)對(duì)車輛、人或?qū)櫸镞M(jìn)行遠(yuǎn)程監(jiān)控，也可對(duì)設(shè)備進(jìn)行設(shè)置，例如通過下發(fā)指令設(shè)置上傳間隔、遠(yuǎn)程重啟設(shè)備等。
　　傳輸網(wǎng)絡(luò)
　　可使用GPRS無線通信網(wǎng)絡(luò)或CDMA無線通信網(wǎng)絡(luò)，也可以使用短信方式進(jìn)行數(shù)據(jù)傳輸。
　　JT/T 794-2011《道路運(yùn)輸車輛衛(wèi)星定位系統(tǒng) 車載終端技術(shù)要求》
　　JT/T 808-2011《道路運(yùn)輸車輛衛(wèi)星定位系統(tǒng) 終端通訊協(xié)議及數(shù)據(jù)格式》

Whether developing GPS equipment hardware or developing application software, we have to face a standard. This standard is the certification standard of road transport vehicle satellite positioning system issued by the Ministry of communications. It covers the parameters and function standards of GPS hardware equipment, the protocol standard of equipment uploading to application platform, and the technology of platform to platform interconnection and mutual transmission Standards. That is to say, all the application platform software developed according to the standard of the Ministry of communications can access the upload data sent by the GPS equipment which meets the national standard developed by different manufacturers. Because the protocol is the same, the platform can also forward the data to the transportation management center of provincial transportation department. At present, for buses and dangerous goods transport vehicles that need to be on the road, two passengers and one danger for short, it is required to install GPS in line with the national standard. If the transport carrier does not have its own software platform, it can use the client software of the Transportation Management Bureau and access to the transportation management center for monitoring. The charging is also a burden for enterprises. Now the national standard for GPS terminal equipment has been further extended, which requires that the reader with fingerprint and other identification must be added, and the cost is not low. After the platform software developers and GPS equipment developers install the standards, they need to pass the Ministry of transportation's detection and certification. Only after obtaining the Ministry's certification can they participate in the bidding of software and hardware. The function test of the platform by the Ministry of communications is mainly to simulate the GPS terminal sending standard protocol data, and then test whether the data can be correctly received. GPS application developers must understand and master these protocols. The platform protocols mainly include JT / tb808, 809 and extended supplementary protocols. At the same time, the protocol also applies the GB 19056 standard issued by the Ministry for the dash cam part. Therefore, all these should be seen. JT / t796 is mainly the standard of hardware equipment, which can be referred to.

部標(biāo)794過檢不通過怎么辦啊？
如果送檢不通過的話需要再現(xiàn)場(chǎng)去整改的。一般都是需要安排的技術(shù)人員在現(xiàn)場(chǎng)跟著技術(shù)中心一起測(cè)試才可以的。在現(xiàn)場(chǎng)需要差不多一個(gè)多月的時(shí)間。不通過的話需要整改到通過才行，如果反復(fù)測(cè)試不通過的話就會(huì)額外產(chǎn)生費(fèi)用的。

如果還有其他問題794認(rèn)證的問題想了解怎么辦？
歡迎大家多多交流，找航天檢測(cè)張小姐吧！新版的794認(rèn)證資料我這里有，可以發(fā)你一份去看看！
794 certification products should meet the following functions: Vehicle real-time monitoring, track playback, image capture, remote monitoring, vehicle control, alarm management, report statistics, vehicle management, etc. Vehicle real-time monitoring: single or multiple vehicles can be monitored to view vehicle location, status information, etc. Track playback: playback the historical track within a specified time period. Image capture: realize the function of vehicle image capture through the selected camera, and record the license plate number and photo time while taking photos. Remote monitoring: by inputting the monitoring number by yourself, remote monitoring, calling and other functions are carried out for the specified vehicle. Vehicle control: realize the remote locking and unlocking functions of the selected vehicle. Alarm management: it can set alarm items and trigger conditions, set specific vehicle alarm items and alarm processing. Report statistics: the report forms include vehicle operation statistics, speed statistics, alarm reports, driver clock in records, report printing and other summary reports, and provide tables, curves, histogram and other forms of report display. At the same time, the system adopts the hierarchical management mode, and users of different levels can only use the corresponding functions. For example, the education department can monitor the running status of vehicles and supervise whether the vehicles and drivers meet the operation requirements. However, parents can only query the real-time status of the student's vehicle and enjoy SMS notification service.