CN204334968U - A kind of Big Dipper short message communication and the Big Dipper/GPS locating terminal - Google Patents
A kind of Big Dipper short message communication and the Big Dipper/GPS locating terminal Download PDFInfo
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- CN204334968U CN204334968U CN201520005998.4U CN201520005998U CN204334968U CN 204334968 U CN204334968 U CN 204334968U CN 201520005998 U CN201520005998 U CN 201520005998U CN 204334968 U CN204334968 U CN 204334968U
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Abstract
The utility model discloses the communication of a kind of Big Dipper short message and the Big Dipper/GPS locating terminal, comprise antenna, for the Big Dipper generation module of short message communication, for the Big Dipper/GPS dual-mode locating module of locating and for controlling the MCU control chip that connected module normally works, described MCU control chip is connected with described Big Dipper generation module and the Big Dipper/GPS dual-mode locating module respectively, described antenna comprises for the first antenna of short message receiving-transmitting and the second antenna for the described Big Dipper/GPS dual-mode locating module satellite positioning signal reception, described first antenna and described Big Dipper generation model calling, described second antenna is connected with the described Big Dipper/GPS dual-mode locating module.The utility model location is more accurate, adopts Big Dipper generation module to achieve short message communication, meets the application at some special occasions not having mobile phone signal to cover, and in case of emergency can send note emergency by Big Dipper generation module.
Description
Technical field
The utility model relates to communication technical field, particularly relates to the communication of a kind of Big Dipper short message and the Big Dipper/GPS locating terminal.
Background technology
At present, the communication products of most domestic are all based on GPS location, and usually, the communication products based on GPS location can only provide positioning function, can not realize short message communication.Although the communication products on the market based on Big Dipper generation module can realize short message communication, must be connected by serial ports, poor with the matching of other communication apparatus, cannot meet consumers' demand under some specific occasion.
Utility model content
The purpose of this utility model is that providing a kind of adopts modularized design, is convenient to the LED Based Intelligent Control driving power realizing multiple light-modulating mode.
For reaching this object, the utility model by the following technical solutions:
The technical program provides the communication of a kind of Big Dipper short message and the Big Dipper/GPS locating terminal, comprise antenna, for the Big Dipper generation module of short message communication, for the Big Dipper/GPS dual-mode locating module of locating and for controlling the MCU control chip that connected module normally works, described MCU control chip is connected with described Big Dipper generation module and the Big Dipper/GPS dual-mode locating module respectively, described antenna comprises for the first antenna of short message receiving-transmitting and the second antenna for the described Big Dipper/GPS dual-mode locating module satellite positioning signal reception, described first antenna and described Big Dipper generation model calling, described second antenna is connected with the described Big Dipper/GPS dual-mode locating module.
Its further technical scheme is, described MCU control chip is STM32F103RET6 chip, and described Big Dipper generation module comprises Big Dipper generation transceiving chip and SIM card holder, described Big Dipper generation transceiving chip is RD168 chip, VCC33 and the VCC pin of RD168 chip is all connected to the emitter of the first triode, the emitter of described first triode is connected to ground by the first electric capacity, the collector electrode of described first triode is connected with power connector end VCC3V3, the collector electrode of described first triode is connected with its base stage by the first resistance, the base stage of described first triode is connected with the JNTRST/PB4/SPI3_MISO pin of STM32F103RET6 chip by the second resistance, VCC-PA1 and the VCC-PA2 pin of RD168 chip is all connected with power connector end VDD5V_RF, the MR pin of RD168 chip is connected with the PB8/TIM4_CH3/SDIO_D4 pin of STM32F103RET6 chip, the MR pin of RD168 chip is connected with the PB8/TIM4_CH3/SDIO_D4 pin of STM32F103RET6 chip, the GND of RD168 chip, GND3, GND0, GND1, GND2 is all connected to ground, the RXD0 pin of RD168 chip is connected to the receiving terminal of described first antenna, the TXD0 pin of RD168 chip is connected to the transmitting terminal of described first antenna, the TXD1 pin of RD168 chip is connected with the PC11/USART4_RX/SDIO_D3 pin of STM32F103RET6 chip, the RXD1 pin of RD168 chip is connected with the PC10/USART4_TX/SDIO_D2 pin of STM32F103RET6 chip, the IC-SRSTS pin of RD168 chip, IC-SD pin and IC-SCLK pin are connected respectively SIM card holder the 3rd pin, 6th pin and the 5th pin, 1st pin and the 4th pin of SIM card holder are all connected with power connector end VCC3V3, and the power pins of SIM card holder is connected to ground by the second electric capacity, 2nd pin of SIM card holder, 7th pin, 8th pin, 9th pin and the 10th pin are all connected to ground.
Its further technical scheme is, also comprise for the bluetooth module with intelligent terminal radio communication, described bluetooth module is connected with described MCU control chip, described bluetooth module is BLK-MD-BC04-B module, the PIO4 pin of BLK-MD-BC04-B module is connected with power connector end VCC3V3 by the 3rd resistance, the VCC pin of BLK-MD-BC04-B module is connected to the emitter of the second triode, the collector electrode of the second triode is connected with power connector end VCC3V3, the collector electrode of the second triode is connected with its base stage by the 4th resistance, the base stage of the second triode is connected with the JTDO/PB3/SPI3_SCK/I2S3_CLK pin of STM32F103RET6 chip by the 5th resistance, the emitter of the second triode is connected with power connector end VCCBT, and the emitter of the second triode is connected to ground by the 3rd electric capacity, the GND1 pin of BLK-MD-BC04-B module, GND2 pin and GND3 pin are all connected to ground, the RESET pin of BLK-MD-BC04-B module is connected with power connector end VCCBT by the 6th resistance, and the RESET pin of BLK-MD-BC04-B module is connected to ground by the 4th electric capacity, the UART_TX pin of BLK-MD-BC04-B module is connected with the PB11/I2C2_SDA/USART3_RX pin of STM32F103RET6 chip, the UART_RX pin of BLK-MD-BC04-B module is connected with the PB10/I2C2_SCL/USART3_TX pin of STM32F103RET6 chip.
Its further technical scheme is, also comprise the voice module reported for operation indicating and information speech, described voice module is connected with described MCU control chip.
Its further technical scheme is, also comprises the memory module for storing note and locator data, and described memory module is connected with described MCU control chip.
Its further technical scheme is also comprise the key-press module for inputting, and described key-press module is connected with described MCU control chip.
Its further technical scheme is, described key-press module comprises voice broadcast button, power switch button and SOS emergency button.
Its further technical scheme is, also comprises the LED light module for pointing out, and described LED light module is connected with described MCU control chip.
Its further technical scheme is, described LED light module comprises power supply indicator, signal lamp, bluetooth state indicator light and SOS emergency indicator light.
Its further technical scheme is, also comprise for debugging or providing the usb interface module of power supply for peripheral terminal, described usb interface module is connected with described MCU control chip.
The beneficial effects of the utility model are: the technical program adopts the Big Dipper/GPS dual-mode locating module to improve positioning precision, on the basis meeting location requirement, Big Dipper generation module is adopted to achieve short message communication, meet the application at some special occasions not having mobile phone signal to cover, in case of emergency can send note emergency by Big Dipper generation module.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of the short message communication of the utility model Big Dipper and the Big Dipper/GPS locating terminal embodiment.
Fig. 2 is the circuit diagram of the MCU control chip of the short message communication of the utility model Big Dipper and the Big Dipper/GPS locating terminal embodiment.
Fig. 3 is the circuit diagram of the Big Dipper generation module of the short message communication of the utility model Big Dipper and the Big Dipper/GPS locating terminal embodiment.
Fig. 4 is the circuit diagram of the bluetooth module of the short message communication of the utility model Big Dipper and the Big Dipper/GPS locating terminal embodiment.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, for the utility model Big Dipper short message communicates and the circuit structure diagram of the Big Dipper/GPS locating terminal embodiment.
The communication of this Big Dipper short message and the Big Dipper/GPS locating terminal 10 comprise antenna, for the Big Dipper generation module 100 of short message communication, for the Big Dipper/GPS dual-mode locating module 101 of locating and for controlling the MCU control chip 102 that connected module normally works, MCU control chip 102 is connected with Big Dipper generation module 100 and the Big Dipper/GPS dual-mode locating module 101 respectively, antenna comprises for the first antenna 103 of short message receiving-transmitting and the second antenna 104 for the Big Dipper/GPS dual-mode locating module 101 satellite positioning signal reception, first antenna 103 is connected with Big Dipper generation module 100, second antenna 104 is connected with the Big Dipper/GPS dual-mode locating module 101.
The Big Dipper/GPS dual-mode locating module 101 receives big-dipper satellite, gps satellite signal by the second antenna 104, the number of satellite of Received signal strength while of the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 is increased to some extent, improve the positioning precision of this terminal, shorten positioning time; Big Dipper generation module 100 receives and dispatches note by the first antenna 103, realizes short message communication, meets the application of the special occasions that some cover without mobile phone signal, in case of emergency can send note emergency by Big Dipper generation module 100.
Shown in composition graphs 2, Fig. 3, MCU control chip 102 is STM32F103RET6 chip U2, and Big Dipper generation module 100 comprises Big Dipper generation transceiving chip U8 and SIM card holder J3, Big Dipper generation transceiving chip U8 is RD168 chip, VCC33 and the VCC pin of RD168 chip is all connected to the emitter of the first triode Q4, the emitter of the first triode Q4 is connected to ground by the first electric capacity C25, the collector electrode of the first triode Q4 is connected with power connector end VCC3V3, the collector electrode of the first triode Q4 is connected with its base stage by the first resistance R50, the base stage of the first triode Q4 is connected with the JNTRST/PB4/SPI3_MISO pin of STM32F103RET6 chip U2 by the second resistance R49, VCC-PA1 pin and the VCC-PA2 pin of RD168 chip are all connected with power connector end VDD5V_RF, the MR pin of RD168 chip is connected with the PB8/TIM4_CH3/SDIO_D4 pin of STM32F103RET6 chip U2, the MR pin of RD168 chip is connected with the PB8/TIM4_CH3/SDIO_D4 pin of STM32F103RET6 chip U2, the GND of RD168 chip, GND3, GND0, GND1, GND2 is all connected to ground, the RXD0 pin of RD168 chip is connected to the receiving terminal of described first antenna 103, the TXD0 pin of RD168 chip is connected to the transmitting terminal of the first antenna 103, the TXD1 pin of RD168 chip is connected with the PC11/USART4_RX/SDIO_D3 pin of STM32F103RET6 chip U2, the RXD1 pin of RD168 chip is connected with the PC10/USART4_TX/SDIO_D2 pin of STM32F103RET6 chip U2, the IC-SRSTS pin of RD168 chip, IC-SD pin and IC-SCLK pin are connected respectively SIM card holder the 3rd pin, 6th pin and the 5th pin, 1st pin and the 4th pin of SIM card holder J3 are all connected with power connector end VCC3V3, and the power pins of SIM card holder is connected to ground by the second electric capacity, 2nd pin of SIM card holder, 7th pin, 8th pin, 9th pin and the 10th pin are all connected to ground.MCU control chip 102 is opened by control first triode Q4, break for Big Dipper generation module 100 be energized, power-off, SIM card is inserted in SIM card holder J3, then can fast and stable send note to Big Dipper short message terminal or Big Dipper ground operation centre, and can the note that sends of the reception Big Dipper short message terminal of fast and stable or Big Dipper ground operation centre.Big Dipper generation module 100 in the present embodiment is only as an instantiation, and conduct is not to restriction of the present utility model, and in other examples, Big Dipper generation module 100 also can use other circuit realiration.
In the present embodiment, also comprise for the bluetooth module 105 with intelligent terminal radio communication, this bluetooth module 105 is connected with MCU control chip 102, after bluetooth module 105 and the bluetooth module of intelligent terminal mate and are connected, just can realize controlling the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 by the application software operating the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 on this intelligent terminal, such as read the short message of this Big Dipper short message communication and the Big Dipper/GPS dual-mode locating terminal 10, obtain location related data, wireless connections operation is more simple and convenient, easy to use, achieve noncontact to connect.
Particularly, shown in composition graphs 4, bluetooth module 105 is BLK-MD-BC04-B module U1, the PIO4 pin of BLK-MD-BC04-B module U1 is connected with power connector end VCC3V3 by the 3rd resistance R5, the VCC pin of BLK-MD-BC04-B module U1 is connected to the emitter of the second triode Q3, the collector electrode of the second triode Q3 is connected with power connector end VCC3V3, the collector electrode of the second triode Q3 is connected with its base stage by the 4th resistance R46, the base stage of the second triode Q3 is connected with the JTDO/PB3/SPI3_SCK/I2S3_CLK pin of STM32F103RET6 chip U2 by the 5th resistance R48, the emitter of the second triode Q3 is connected with power connector end VCCBT, and the emitter of the second triode Q3 is connected to ground by the 3rd electric capacity C4, the GND1 pin of BLK-MD-BC04-B module U1, GND2 pin and GND3 pin are all connected to ground, the RESET pin of BLK-MD-BC04-B module U1 is connected with power connector end VCCBT by the 6th resistance R6, and the RESET pin of BLK-MD-BC04-B module U1 is connected to ground by the 4th electric capacity R6, the UART_TX pin of BLK-MD-BC04-B module U1 is connected with the PB11/I2C2_SDA/USART3_RX pin of STM32F103RET6 chip U2, the UART_RX pin of BLK-MD-BC04-B module U1 is connected with the PB10/I2C2_SCL/USART3_TX pin of STM32F103RET6 chip U2.MCU control chip 102 is opened by control second triode Q3, break for bluetooth module 105 be energized, power-off, for bluetooth module 105 be energized after can realize the transfer of data stable with other intelligent terminals, convenient and swift.Bluetooth module 105 in the present embodiment is only as an instantiation, and conduct is not to restriction of the present utility model, and in other examples, Big Dipper generation module 100 also can use other circuit realiration.
Preferably, Big Dipper generation module 100 is connected with MCU control chip 102 by the power amplifier, filter and the radio circuit that connect in turn, the data that MCU control chip 102 sends are sent by the first antenna 103 in Big Dipper generation module 100 after being amplified by radio circuit frequency conversion, filter filtering and power amplifier, the data that Big Dipper generation module 100 is received by the first antenna 103 are amplified through power amplifier, send MCU control chip 102 to after filter filtering and radio circuit frequency conversion, make the data that send and receive more accurate.
Preferably, also comprise the voice module 106 reported for operation indicating and information speech, this voice module 106 is connected with MCU control chip 102.
Preferably, also comprise the memory module 107 for storing note and locator data, this memory module 107 is connected with MCU control chip 102.The limited storage space that MCU control chip 102 is built-in, memory module 107, for expanding data space, can store more note and location information data, consults so that follow-up.
Preferably, also comprise the key-press module 108 for inputting, this key-press module 108 is connected with MCU control chip 102.In the present embodiment, key-press module 108 comprises voice broadcast button, power switch button and SOS emergency button, and pressing voice broadcast button then opening voice reports function, again presses voice broadcast button and then closes voice broadcast function; Pushing power switch button, the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 are energized work, again pushing power switch button, the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 deenergization; Pressing SOS emergency button, one key emergency function is opened, and sends at interval of one minute short message of once crying for help, and again presses SOS emergency button and then closes a key emergency function, SOS emergency button can send an SOS fast in special environment, provides reliable information for starting rescue.In other embodiments, can also have the button of other functions, the present embodiment is only individual instances, not as the restriction to the technical program.
Preferably, also comprise the LED light module 109 for pointing out, this LED light module 109 is connected with MCU control chip 102.Particularly, LED light module 109 comprises power supply indicator, signal lamp, bluetooth state indicator light and SOS emergency indicator light.When the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 are in open state, power supply indicator presents redness, and when being in off-mode, power supply indicator does not work; When the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 to dock with big-dipper satellite signal good time, signal lamp presents green, and when dtr signal, signal lamp presents redness; When the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 start bluetooth module 105 and have the intelligent terminal successful connection of Bluetooth function, bluetooth state indicator light presents green, and when not mating intelligent terminal, bluetooth state indicator light does not work; When unlatching one key emergency function, SOS emergency indicator light presents green, and when short message sends successfully, SOS emergency indicator light has the regularity flicker of short time, and when a key emergency function is closed, SOS emergency indicator light does not work.There is the prompting of indicator light, clearly can know the state of the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 in operation, be convenient to carry out next step operation.
Preferably, also comprise for debugging or providing the usb interface module 110 of power supply for peripheral terminal, this usb interface module 110 is connected with MCU control chip 102.Later development and debugging is carried out by usb interface module 110 pairs of Big Dipper short message communications and the Big Dipper/GPS dual-mode locating terminal 10, and it is other power electronic equipment that this usb interface module 110 can realize 5v direct voltage output, as mobile phone, digital camera, MP3.Make the communication of Big Dipper short message and the Big Dipper/GPS dual-mode locating terminal 10 be convenient to maintenance upgrade, and in emergency circumstances can use as power supply.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection range by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection range of the present utility model.
Claims (10)
1. a Big Dipper short message communication and the Big Dipper/GPS locating terminal, it is characterized in that, comprise antenna, for the Big Dipper generation module of short message communication, for the Big Dipper/GPS dual-mode locating module of locating and for controlling the MCU control chip that connected module normally works, described MCU control chip is connected with described Big Dipper generation module and the Big Dipper/GPS dual-mode locating module respectively, described antenna comprises for the first antenna of short message receiving-transmitting and the second antenna for the described Big Dipper/GPS dual-mode locating module satellite positioning signal reception, described first antenna and described Big Dipper generation model calling, described second antenna is connected with the described Big Dipper/GPS dual-mode locating module.
2. Big Dipper short message communication according to claim 1 and the Big Dipper/GPS locating terminal, it is characterized in that, described MCU control chip is STM32F103RET6 chip, and described Big Dipper generation module comprises Big Dipper generation transceiving chip and SIM card holder, described Big Dipper generation transceiving chip is RD168 chip, VCC33 and the VCC pin of RD168 chip is all connected to the emitter of the first triode, the emitter of described first triode is connected to ground by the first electric capacity, the collector electrode of described first triode is connected with power connector end VCC3V3, the collector electrode of described first triode is connected with its base stage by the first resistance, the base stage of described first triode is connected with the JNTRST/PB4/SPI3_MISO pin of STM32F103RET6 chip by the second resistance, VCC-PA1 and the VCC-PA2 pin of RD168 chip is all connected with power connector end VDD5V_RF, the MR pin of RD168 chip is connected with the PB8/TIM4_CH3/SDIO_D4 pin of STM32F103RET6 chip, the MR pin of RD168 chip is connected with the PB8/TIM4_CH3/SDIO_D4 pin of STM32F103RET6 chip, the GND of RD168 chip, GND3, GND0, GND1, GND2 is all connected to ground, the RXD0 pin of RD168 chip is connected to the receiving terminal of described first antenna, the TXD0 pin of RD168 chip is connected to the transmitting terminal of described first antenna, the TXD1 pin of RD168 chip is connected with the PC11/USART4_RX/SDIO_D3 pin of STM32F103RET6 chip, the RXD1 pin of RD168 chip is connected with the PC10/USART4_TX/SDIO_D2 pin of STM32F103RET6 chip, the IC-SRSTS pin of RD168 chip, IC-SD pin and IC-SCLK pin are connected respectively SIM card holder the 3rd pin, 6th pin and the 5th pin, 1st pin and the 4th pin of SIM card holder are all connected with power connector end VCC3V3, and the power pins of SIM card holder is connected to ground by the second electric capacity, 2nd pin of SIM card holder, 7th pin, 8th pin, 9th pin and the 10th pin are all connected to ground.
3. Big Dipper short message communication according to claim 2 and the Big Dipper/GPS locating terminal, it is characterized in that, also comprise for the bluetooth module with intelligent terminal radio communication, described bluetooth module is connected with described MCU control chip, described bluetooth module is BLK-MD-BC04-B module, the PIO4 pin of BLK-MD-BC04-B module is connected with power connector end VCC3V3 by the 3rd resistance, the VCC pin of BLK-MD-BC04-B module is connected to the emitter of the second triode, the collector electrode of the second triode is connected with power connector end VCC3V3, the collector electrode of the second triode is connected with its base stage by the 4th resistance, the base stage of the second triode is connected with the JTDO/PB3/SPI3_SCK/I2S3_CLK pin of STM32F103RET6 chip by the 5th resistance, the emitter of the second triode is connected with power connector end VCCBT, and the emitter of the second triode is connected to ground by the 3rd electric capacity, the GND1 pin of BLK-MD-BC04-B module, GND2 pin and GND3 pin are all connected to ground, the RESET pin of BLK-MD-BC04-B module is connected with power connector end VCCBT by the 6th resistance, and the RESET pin of BLK-MD-BC04-B module is connected to ground by the 4th electric capacity, the UART_TX pin of BLK-MD-BC04-B module is connected with the PB11/I2C2_SDA/USART3_RX pin of STM32F103RET6 chip, the UART_RX pin of BLK-MD-BC04-B module is connected with the PB10/I2C2_SCL/USART3_TX pin of STM32F103RET6 chip.
4. Big Dipper short message communication according to claim 2 and the Big Dipper/GPS locating terminal, is characterized in that, also comprise the voice module reported for operation indicating and information speech, described voice module is connected with described MCU control chip.
5. Big Dipper short message communication according to claim 2 and the Big Dipper/GPS locating terminal, it is characterized in that, also comprise the memory module for storing note and locator data, described memory module is connected with described MCU control chip.
6. Big Dipper short message communication according to claim 2 and the Big Dipper/GPS locating terminal, it is characterized in that, also comprising the key-press module for inputting, described key-press module is connected with described MCU control chip.
7. Big Dipper short message communication according to claim 6 and the Big Dipper/GPS locating terminal, is characterized in that, described key-press module comprises voice broadcast button, power switch button and SOS emergency button.
8. Big Dipper short message communication according to claim 2 and the Big Dipper/GPS locating terminal, it is characterized in that, also comprise the LED light module for pointing out, described LED light module is connected with described MCU control chip.
9. Big Dipper short message communication according to claim 8 and the Big Dipper/GPS locating terminal, is characterized in that, described LED light module comprises power supply indicator, signal lamp, bluetooth state indicator light and SOS emergency indicator light.
10. Big Dipper short message according to claim 2 communication and the Big Dipper/GPS locating terminal, is characterized in that, also comprise for debugging or providing the usb interface module of power supply for peripheral terminal, described usb interface module is connected with described MCU control chip.
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CN201520005998.4U CN204334968U (en) | 2015-01-06 | 2015-01-06 | A kind of Big Dipper short message communication and the Big Dipper/GPS locating terminal |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105472557A (en) * | 2015-12-02 | 2016-04-06 | 重庆邮电大学 | TD-LTE emergency communication terminal based on Beidou GPS dual-mode positioning, and monitoring command system |
CN105871401A (en) * | 2016-03-25 | 2016-08-17 | 航天科技控股集团股份有限公司 | Beidou communication vehicle-mounted terminal based Internet of Things system |
CN106274986A (en) * | 2016-08-30 | 2017-01-04 | 北京终南山科技发展有限公司 | Vehicle monitor terminal and safety of railway traffic monitoring system |
CN106347410A (en) * | 2016-08-30 | 2017-01-25 | 北京终南山科技发展有限公司 | Railway transportation safety monitoring system |
CN107948957A (en) * | 2017-11-15 | 2018-04-20 | 广西师范学院 | A kind of control system of Big Dipper terminal for Big Dipper short message transmitting |
CN113093234A (en) * | 2021-03-10 | 2021-07-09 | 河北晶禾电子技术股份有限公司 | Big dipper bimodulus position tracking data terminal |
CN115085343A (en) * | 2022-08-18 | 2022-09-20 | 北京天海达科技有限公司 | Beidou short message mobile terminal power supply system and method |
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2015
- 2015-01-06 CN CN201520005998.4U patent/CN204334968U/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105472557A (en) * | 2015-12-02 | 2016-04-06 | 重庆邮电大学 | TD-LTE emergency communication terminal based on Beidou GPS dual-mode positioning, and monitoring command system |
CN105871401A (en) * | 2016-03-25 | 2016-08-17 | 航天科技控股集团股份有限公司 | Beidou communication vehicle-mounted terminal based Internet of Things system |
CN106274986A (en) * | 2016-08-30 | 2017-01-04 | 北京终南山科技发展有限公司 | Vehicle monitor terminal and safety of railway traffic monitoring system |
CN106347410A (en) * | 2016-08-30 | 2017-01-25 | 北京终南山科技发展有限公司 | Railway transportation safety monitoring system |
CN107948957A (en) * | 2017-11-15 | 2018-04-20 | 广西师范学院 | A kind of control system of Big Dipper terminal for Big Dipper short message transmitting |
CN113093234A (en) * | 2021-03-10 | 2021-07-09 | 河北晶禾电子技术股份有限公司 | Big dipper bimodulus position tracking data terminal |
CN115085343A (en) * | 2022-08-18 | 2022-09-20 | 北京天海达科技有限公司 | Beidou short message mobile terminal power supply system and method |
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