source:truck tracking webfleet solutions release time:2022-11-18 Hits: Popular:realtime gps tracker online
GPS is a mature technology, but in China, civil product development is not very popular, mainly concentrated in navigation equipment. In schools, information about teachers' work and students' learning schedule is often transmitted through the bell ringer. The existing bell ringing instrument of the school is generally controlled by a time control switch. The time control switch is internally controlled by a single chip computer as the master chip. The travel time system mainly depends on the clock chip inside. The accuracy of the clock chip depends largely on the external crystal oscillator. There will always be errors in the accuracy of the crystal oscillator. If the time is long and the error accumulates, the system will have large errors in timing. For example, after a month, the clock is always 1 to 2 minutes faster or slower. As time goes on, the error will become larger and larger. Therefore, maintenance and calibration must be carried out manually at regular intervals. When the school area is large, multiple time control switches may be required, and the accuracy of these time control switches may not be the same. In this way, it is bound to cause the non synchronization of the work and rest ringing tones, and the connection between the ordinary time control switch and the bell ringer is realized through the wire, and the aging problem of the middle line is inevitable. The ringing control is realized through GPS timing, which can achieve accurate time without manual calibration. Transmission of control information through wireless module can separate strong current from weak current, and eliminate the wire between control equipment and controlled equipment. The circuit is simple, more safe and reliable. It has a very good application prospect for schools, enterprises and institutions, factories, troops and other occasions that need to be used for work and rest ringing and time control
Read recommendations:
Centimeter -level high -precision 4G full Netcom GPS positioner.fleet management software webfleet s
Last article:GPS design idea and scheme
Next article:The principle of GPS is introduced to you
Related Information
Pet GPS Tracker wholesale
2023-03-16Car gps tracking
2023-04-11fleet tracking mobile app
2023-03-16fleet gps trackers Vendor
2023-04-23personal gps tracker distributors
2023-03-16personal gps tracker
2023-04-11vehicle gps tracker wholesale
2023-04-23car gps tracker custom
2023-04-23pet gps tracker cat Vendor
2023-03-16car gps tracker distributors
2023-04-23G06L- 4G Car GPS Tracker
2022-09-06YG119- Hunting Dog GPS tracker
2023-10-07G200(L) -Magnet GPS Tracker
2022-06-20GF20-Mini Magnet GPS Tracker
2022-06-21TK08AL- RFID Car GPS Tracker
2023-10-07GPS system GPS BLOKC III prototype starts testing
2023-02-03The application process of GPS positioner in car loans is as follows.vehicle gps tracker Manufacturi
2023-03-17How to select a suitable vehicle GPS locator
2023-02-21Buy car navigation 3 principle 3 principle.plug & play Obd gps tracker wholesaler
2023-04-14Where can the general car positioner be installed.obd13 gps tracker verizon Manufacturing
2023-03-10Global GPS list and parameters
2022-12-01Structure of GPS antenna
2022-11-12Actual demand and development trend of GPS market
2022-12-22Gps speed limiter.Selection of Client Software for Unit Vehicle GPS Satellite Positioning System
2023-11-11What kind of gps tracker is easy to use?
2022-09-08GPS precautions.portable gps tracker supplier
2023-06-28What are GPS in aviation flight navigation.gps tracker for trailer distributors
2023-04-10GPS coordinates.gps tracker for trailer wholesaler
2023-08-12Instructions for the operation of the built -in receiver of the car positioning terminal
2023-04-03GPS remote control function.realtime gps tracker online Production
2023-08-02