CN203745892U - Multifunctional remote measuring terminal - Google Patents

Multifunctional remote measuring terminal Download PDF

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Publication number
CN203745892U
CN203745892U CN201420150530.XU CN201420150530U CN203745892U CN 203745892 U CN203745892 U CN 203745892U CN 201420150530 U CN201420150530 U CN 201420150530U CN 203745892 U CN203745892 U CN 203745892U
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China
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module
function
cpu
interface
bit cpu
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CN201420150530.XU
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Chinese (zh)
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陈淑武
唐仕斌
邹锋
郑启枣
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厦门四信通信科技有限公司
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The utility model relates to a multifunctional remote measuring terminal which mainly comprises a 32-bit CPU system, a wireless communication module and a four-way digital quantity input module. The multifunctional remote measuring terminal overcomes the use and maintenance inconvenience of a conventional remote measuring terminal, diversifies the acquiring and control interface types, and improves the application scope and communication stability of the device.

Description

Multi-functional telemetering terminal
Technical field
The utility model relates to a kind of telemetering terminal, relating in particular to one utilizes 2G/2.5G/3G/3.5G/4G common network for main transmission channel, note is backup transmission channel, the telemetering terminal of the communication modes such as the optional Big Dipper, satellite, PSTN, ultrashort wave (USW), microwave, ZigBee.This telemetering terminal is realized collection, storage, demonstration, control, warning and the transmission of the hydrology/Water resources data simultaneously, possess the interfaces such as rain gage, SDI-12, digital quantity input, digital output, analog acquisition, 12 Gray codes, relay output, RS232 and RS485, can the perfect various application of supporting water conservancy industry.
Background technology
Traditional telemetering terminal is generally only supported local data collection and storage, does not possess telecommunication function, cannot administer and maintain at a distance, and collection and control interface single, therefore more and more cannot meet client's demand.The site environment of general telemetering terminal work is all more remote, and environment is severe, complicated condition, and artificial field maintemance difficulty is large, cost is high, and this just requires telemetering terminal to possess the function of strong interference immunity, remote centralized management maintenance.Meanwhile, in order to improve the applicability of equipment and the reliability of communicating by letter, require to gather control interface rich and varied, support much information transmission and backup path, prevent the loss of image data.
Utility model content
The utility model object is to overcome the above problems, and has not only solved traditional telemetering terminal
The shortcoming of operation and maintenance inconvenience, has also enriched data acquisition and control interface, and perfect data transmission and backup path have ensured stability and the reliability of data acquisition and transmission.The telemetering terminal that the utility model relates to has not only been realized traditional data collection and transfer function, also realize note backup transmission, the communications such as the compatible Big Dipper, satellite, PSTN, ultrashort wave (USW), microwave, ZigBee, have enriched interface type and data transmittal and routing form greatly.
For reaching above-mentioned purpose, the utility model adopts following technical scheme:
Multi-functional telemetering terminal, mainly comprises:
32 bit CPU systems: it is main control unit, completes ICP/IP protocol are controlled the various functions such as data acquisition, storage, transmission and alarm simultaneously to other each module.
Wireless communication module: connect 32 bit CPU systems, realize remote data transmission and alarm function;
SIM card interface module: realize SIM card access and SIM card defencive function;
4 railway digital amount load modules: connect 32 bit CPU systems and realize digital quantity (switching value) acquisition function;
2 railway digital amount output modules: connect 32 bit CPU systems and realize discrete control output function;
2 road relay output modules: connect 32 bit CPU systems and realize switching value control output function;
12 Gray code interface modules: connect 32 bit CPU systems and realize 12 Gray code interface acquisition functions;
SDI-12 module: connect 32 bit CPU systems and realize SDI-12 communication function;
UART expansion module: connection 32 bit CPU systems realize 1 road SPI and turn multichannel UART function;
RS232-2 interface module: connect UART expansion module and realize standard RS232 communication function;
RS485-2 interface module: connect UART expansion module and realize standard RS485 communication function;
ADC modular converter: connection 32 bit CPU systems realize analog quantity and turn digital quantity function;
8 road analogue collection modules: connect ADC modular converter and realize analog acquisition function;
5 road controllable electric power output modules: connect 32 bit CPU systems and system power supply module and realize 5 road controllable electric power output functions;
Wake button module up: connect 32 bit CPU systems and realize system hibernates arousal function;
4*4 Keysheet module: connect 32 bit CPU systems and realize keyboard entry function;
LCD display module: connect 32 bit CPU systems and realize system text message Presentation Function;
LED lamp module: connect 32 bit CPU systems and realize systemic-function instruction;
RTC clock module: connect 32 bit CPU systems and realize real-time clock function;
DC power input interface module: the external power supply adaptor that connects, realize DC power supply input function;
System power supply module: connect DC power input interface and realize system voltage translation function;
Power management module: connect 32 bit CPU systems and realize power supply managing function;
Main electro-detection module: connect 32 bit CPU systems with detecting DC power input voltage;
RS485-1 module: connect 32 bit CPU systems and realize RS485 communication function;
RS232-1 module: connect 32 bit CPU systems and realize RS232 communication function;
Rainfall acquisition module: connect 32 bit CPU systems and realize rainfall acquisition function;
GPS module: connect 32 bit CPU systems, the gps data that GPS module receives passes to the GPS service centre of appointment by wireless communication module;
Data memory module: connection 32 bit CPU systems realize the local storage function of image data;
The described built-in watchdog module of 32 bit CPU system and RTC module, embedded ICP/IP protocol stack, and realize note and wireless data transmission function by wireless communication module.
Described wireless module is connected with 32 bit CPU systems by UART interface, and wireless communication module is supported the multiple 2G/2.5G/ 3G/3.5G/4G networks such as GSM/GPRS/CDMA/EDGE/WCDMA/EVDO/TD-SCDMA/LTE, and is provided with antenna.
12 described Gray code interface modules are connected with 32 bit CPU systems by I2C bus, realize reading of Gray code low and high level signal.
Described SDI-12 module comprises SDI sending and receiving and enable signal, realizes the read-write capability of SDI-12.
Described UART expansion module is connected with 32 bit CPU systems by spi bus, realizes 1 road spi bus and turn the function of multichannel UART.
Described RS232-2 interface module is connected with UART expansion module by UART interface, realizes standard RS232 communication function.
Described RS485-2 interface module is connected with UART expansion module by UART interface, realizes standard RS485 communication function.
Described ADC modular converter is connected with 32 bit CPU systems by I2C bus, realizes analog quantity and turn the function of digital quantity.
Described 4*4 Keysheet module is connected with 32 bit CPU systems by common I/O mouth, realizes human-computer interaction function.
Described LCD display module is connected with 32 bit CPU systems by common I/O mouth, realizes human-computer interaction function.
Described RTC clock module is connected with 32 bit CPU systems by I2C bus, for cpu system provides real-time clock information.
Described main electro-detection module is connected with 32 bit CPU systems by common I/O, realizes the acquisition function of supply voltage.
Described RS485-1 module is connected with 32 bit CPU systems by UART bus, realizes standard RS485 communication function.
Described RS232-1 module is connected with 32 bit CPU systems by UART bus, realizes standard RS232 communication function.
Described rainfall acquisition module is connected with 32 bit CPU systems by look-at-me, realizes the acquisition function of rainfall signal.
Described GPS module is connected with 32 bit CPU systems by UART or SPI interface, and GPS module is provided with gps antenna.
Described data memory module is connected with 32 bit CPU systems by spi bus, realizes the memory function of image data.
The telemetering terminal that the utility model relates to has not only solved the shortcoming of traditional telemetering terminal use and maintenance inconvenience, has also enriched collection and control interface form, has improved the scope of application and the communication stability of equipment.The telemetering terminal that the utility model relates to utilize 2G/2.5G/3G/3.5G/4G common network for main transmission channel, note be backup transmission channel, the communication modes such as the optional Big Dipper, satellite, PSTN, ultrashort wave (USW), microwave, ZigBee are realized collection, storage, demonstration, control, warning and the transmission of the hydrology/Water resources data simultaneously.Enrich greatly the mode of collection and transmission information, for water conservancy, water resource monitoring industry provide a kind of outstanding selection scheme.
Brief description of the drawings
With accompanying drawing, the utility model is described in detail below:
Fig. 1 is the utility model structural representation.
Embodiment
below in conjunction with accompanying drawing and enforcement, the utility model is described in detail:
Embodiment of the present utility model as shown in Figure 1, telemetering terminal comprises: 32 bit CPU systems 1, wireless communication module 2, SIM card interface module 25, cellular antenna 26, 4 railway digital amount load modules 3, 2 railway digital amount output modules 4, 2 road relay output modules 5, 12 Gray code interface modules 6, SDI-12 interface module 7, UART extended chip module 8, RS232-2 interface module 27, RS485-2 interface module 28, ADC modular converter 9, 8 road analogue collection modules 29, 5 road controllable electric power output modules 10, wake button module 11 up, 4*4 Keysheet module 12, LCD display module 13, LED lamp module 14, RTC clock module 15, power management module 16, system power supply module 17, DC power input interface module 19, main electro-detection module 18, RS485-1 interface module 20, RS232-1 interface module 21, rainfall acquisition module 22, GPS module 23, gps antenna 30, data memory module 24.
In the utility model, 32 bit CPU systems 1 are main control units, complete ICP/IP protocol, other each module are controlled simultaneously, complete multi-functional collection, storage, transmission and alarm function.32 bit CPU systems realize 2G/2.5G/ 3G/3.5G/4G wireless data by wireless communication module 2, the data-transformation facilities such as short message, realize digital data acquisition function by 4 railway digital amount load modules, realize control figure amount output function by 2 railway digital amount output modules, realize gauge tap amount output function by 2 road relay output modules, realize 12 Gray code data acquisition functions by 12 Gray code interface modules, realize reception and the sending function of standard SDI-12 interface data by SDI-12 interface module, realize 1 road SPI by UART extended chip module and turn multichannel UART function, realize standard RS232 communication function by RS232-2 interface module, realize standard RS485 communication function by RS485-2 interface module, realize analog quantity by ADC modular converter and turn digital quantity function, realize analog acquisition function by 8 road analogue collection modules, realize controllable electric power output function by 5 road controllable electric power output modules, realize system hibernates arousal function by waking button module up, realize keyboard entry function by 4*4 Keysheet module, realize LCD Presentation Function by LCD display module, realize LED indication mechanism duty function by LED lamp module, realize system's real-time clock function by RTC clock module, realize system power supply control and management by power management module, realize system power supply function by system power supply module, realize input and the defencive function of direct supply by DC power input interface module, realize direct-current input power supplying voltage detecting function by main electro-detection module, realize standard RS485 communication function by RS485-1 interface module, realize standard RS232 communication function by RS232-1 interface module module, realize rainfall data acquisition function by rainfall acquisition module, obtain GPS information by GPS module, realize the local storage function of image data by data memory module.
Wireless communication module adopts modular design, can support the multiple 2G/2.5G/ 3G/3.5G/4G networks such as GSM/GPRS/CDMA/EDGE/WCDMA/EVDO/TD-SCDMA/LTE simultaneously, and be provided with SIM card interface module and cellular antenna.Between wireless communication module and 32 bit CPU systems, adopt UART mode to be connected, wireless communication module mainly completes the air interface of wireless network, comprises wireless data, short message and gps data transfer function.32 bit CPU systems can be controlled separately the power supply of wireless communication module.
4 railway digital amount load modules 3 mainly complete digital quantity input function.Digital-quantity input interface module is received effective low and high level, can send to the common I/O pin of 32 bit CPU systems, and the low and high level that then 32 bit CPU systems can receive according to I/O mouth is made corresponding operation.
2 railway digital amount output modules mainly complete discrete control output function, control output state by the common I/O of 32 bit CPU systems, and interface output is the output of OC door, and client can define low and high level value as required.
2 road relay output modules mainly complete switching value control output function, are controlled the open and close state of output switch by the common I/O of 32 bit CPU systems.
12 Gray code interface modules mainly complete 12 Gray code information collection functions.12 Gray code interface modules and 32 bit CPU systems 1 are by I2C bus communication.
SDI-12 interface module mainly completes the communication function with SID-12 sensor.SDI-12 interface module is connected with the common I/O mouth of 32 bit CPU systems 1, by the digital received and sent of 32 bit CPU system control SDI-12 interface modules.
It is the function of multichannel UART interface that UART extended chip module mainly completes 1 road SPI interface conversion.UART extended chip module is connected by spi bus with 32 bit CPU systems 1.
ADC modular converter mainly completes the analog quantity that 8 road analogue collection modules are collected and is converted to digital quantity.ADC modular converter is connected by spi bus with 32 bit CPU systems.ADC modular converter is provided with 8 road analogue collection modules.
5 road controllable electric power output modules mainly complete power output function.5 road controllable electric power output modules are connected with the common I/O of 32 bit CPU systems 1, and 32 bit CPU systems can be controlled the general supply output of 5 road controllable electric power output modules, also can control separately the output of each road power supply.
Wake the artificial arousal function after the main completion system dormancy of button module up.Wake button module up and be connected with the interruption I/O of 32 bit CPU systems, wake button module up by interruption I/O and can wake 32 bit CPU systems under deep sleep state up.
The input function of information when the main finishing man-machine interaction of 4*4 Keysheet module.4*4 Keysheet module is connected with the common I/O of 32 bit CPU systems.
The Presentation Function of information when the main finishing man-machine interaction of LCD display module.LCD display module is connected with the common I/O of 32 bit CPU systems, and 32 bit CPU systems can be controlled LCD display and cover the power supply of module.
LED lamp module is mainly realized indication mechanism duty function, and it is connected with the GPIO of 32 bit CPU systems, according to working state control LED lamp bright, go out or glimmer.
RTC clock module is mainly realized the function that real-time clock is provided to 32 bit CPU systems, and it is connected by I2C bus with 32 bit CPU systems 1.
DC power input interface module mainly realizes the input of direct supply and to power supply overcurrent, overvoltage and reverse protection.
System power supply module mainly provides 32 bit CPU systems and the required power supply of the normal work of various peripheral hardware.
The management of the main completion system power supply of power management module and the protection and restoration function after abnormal is appearred in 32 bit CPU system works.
Main electro-detection module mainly realizes the main electric supply voltage of detecting, and it is connected with the ADC pin of 32 bit CPU systems 1, by gathering level value instruction supply voltage value.
RS485-1 interface module mainly realizes the UART mouth of 32 bit CPU systems is converted to standard RS485 interface.
RS323-1 interface module mainly realizes the UART mouth of 2 bit CPU systems 1 is converted to standard RS232 interface.
Rainfall acquisition module is mainly realized rainfall value acquisition function.Rainfall acquisition module M is connected with the interruption I/O of 32 bit CPU systems, calculates rainfall value by the variation accumulated value that interrupts I/O pin low and high level.
GPS module mainly completes the reception of gps data, and by UART or SPI interface, gps data is passed to 32 bit CPU systems, 32 bit CPU systems and data is dealt into by wireless communication module 2 again the gps data center of appointment, completes GPS positioning function.GPS module is provided with antenna.
The local storage function of the each interface image data of the main completion system of data memory module.Data memory module is connected by spi bus with 32 bit CPU systems, and 32 bit CPU systems carry out to data memory module P the operation that data write and read by spi bus.
The telemetering terminal that the utility model relates to has not only solved the shortcoming of traditional telemetering terminal use and maintenance inconvenience, has also enriched collection and control interface form, has improved the scope of application and the communication stability of equipment.The telemetering terminal that the utility model relates to utilize 2G/2.5G/3G/3.5G/4G common network for main transmission channel, note be backup transmission channel, the communication modes such as the optional Big Dipper, satellite, PSTN, ultrashort wave (USW), microwave, ZigBee are realized collection, storage, demonstration, control, warning and the transmission of the hydrology/Water resources data simultaneously.Enrich greatly the mode of collection and transmission information, for water conservancy, water resource monitoring industry provide a kind of outstanding selection scheme.

Claims (10)

1. multi-functional telemetering terminal, is characterized in that: mainly comprise:
32 bit CPU systems (1); Be main control unit, complete ICP/IP protocol, other each module is controlled simultaneously, complete multi-functional collection, storage, transmission and alarm function;
Wireless communication module (2): connection 32 bit CPU systems (1) complete the air interface of wireless network, comprise wireless data, short message and gps data transfer function;
4 railway digital amount load modules (3): connect 32 bit CPU systems (1) and complete digital quantity input function;
2 railway digital amount output modules (4): connect 32 bit CPU systems (1) and complete discrete control output function;
2 road relay output modules (5): connect 32 bit CPU systems (1) and complete switching value control output function;
12 Gray code interface modules (6): connect 32 bit CPU systems (1) and complete 12 Gray code information collection functions;
SDI-12 interface module (7): connection 32 bit CPU systems (1) complete the communication function with SID-12 sensor;
UART extended chip module (8): it is the function of multichannel UART interface that connection 32 bit CPU systems (1) complete 1 road SPI interface conversion;
ADC modular converter (9): connection 32 bit CPUs (1) complete the analog quantity that 8 road analogue collection modules 91 are collected and are converted to digital quantity;
5 road controllable electric power output modules (10): connect 32 bit CPU systems (1) and complete power output function;
Wake button module (11) up: connect the artificial arousal function after 32 bit CPU system (1) completion system dormancy;
4*4 Keysheet module (12): the input function of information while connecting 32 bit CPU system (1) finishing man-machine interaction;
LCD display module (13): the Presentation Function of information while connecting 32 bit CPU system (1) finishing man-machine interaction;
LED lamp module (14): connect 32 bit CPU systems (1) and realize indication mechanism duty function;
RTC clock module (15): connect 32 bit CPU systems (1) and realize the function that real-time clock is provided to 32 bit CPU systems (1);
Power management module (16): the protection and restoration function after connecting the management of 32 bit CPU system (1) completion system power supplys and occurring extremely to 32 bit CPU system works;
System power supply module (17): provide the normal work of 32 bit CPU systems (1) and various peripheral hardware required power supply;
Main electro-detection module (18): connect 32 bit CPU systems (1) and realize the main electric supply voltage function of detecting;
DC power input interface module (19): connect that main electro-detection module (18) and system power supply module (17) realize the input of direct supply and to power supply overcurrent, overvoltage and reverse defencive function;
RS485-1 interface module (20): connect 32 bit CPU systems (1) realizations the UART mouth of 32 bit CPU systems 1 is converted to standard RS485 interface function;
RS323-1 interface module (21): connect 32 bit CPU systems (1) realizations the UART mouth of 2 bit CPU systems 1 is converted to standard RS232 interface function;
Rainfall acquisition module (22): connect 32 bit CPU systems (1) and realize rainfall value acquisition function;
GPS module (23): connection 32 bit CPU systems (1) complete the reception of gps data, complete GPS positioning function;
Data memory module (24): the local storage function that connects the each interface image data of 32 bit CPU system (1) completion system.
2. multi-functional telemetering terminal as claimed in claim 1, it is characterized in that: the described built-in house dog of 32 bit CPU system and RTC module, embedded ICP/IP protocol, and realize the air interface of wireless network by wireless module, comprise wireless data, short message and gps data transfer function; And realize digital data acquisition function by 4 railway digital amount load modules; And realize digital output function by 2 railway digital amount output modules; And realize switching value control output function by No. 2 relay outputs; And realize 12 Gray code data acquisition functions by 12 Gray code interface modules; And by SDI-12 Interface realization SDI-12 data acquisition function; And realize standard RS232 communication function by RS232 modular converter; And realize standard RS485 communication function by RS485 modular converter; And realize analog acquisition function by ADC modular converter; And realize rainfall data acquisition function by rainfall acquisition module.
3. multi-functional telemetering terminal as claimed in claim 1, it is characterized in that: described wireless module is connected with cpu system by UART interface, wireless communication module is supported the 2G/2.5G/3G/ 3.5G/4G network of GSM/GPRS/CDMA/EDGE/WCDMA/TD-SCDMA/LTE, and is provided with antenna.
4. multi-functional telemetering terminal as claimed in claim 1, is characterized in that: 4 described railway digital amount input interface modules are connected with cpu system by GPIO; 2 described railway digital amount output interface modules are connected with cpu system by GPIO; Described No. 2 relay output interface modules are connected with cpu system by GPIO.
5. multi-functional telemetering terminal as claimed in claim 1, is characterized in that: described SDI-12 interface module is connected with cpu system by GPIO; 5 described road controllable electric power outputs are connected with cpu system by GPIO; Described 4*4 Keysheet module is connected with cpu system by GPIO; Described LCD display module is connected with cpu system by GPIO; Described LED lamp module is connected with cpu system by GPIO; Described RTC clock module is connected with cpu system by I2C; Described power management module is connected with cpu system by GPIO.
6. multi-functional telemetering terminal as claimed in claim 1, is characterized in that: 12 described Gray code interface modules are connected with cpu system by I2C.
7. multi-functional telemetering terminal as claimed in claim 1, is characterized in that: described UART extended chip module is connected with cpu system by SPI, comprises 1 road RS485 change-over circuit and 1 road RS232 change-over circuit; Described ADC modular converter is connected with cpu system by SPI, comprises 8 road analog acquisition interface modules; The described button module of waking up is connected with cpu system by interrupting I/O.
8. multi-functional telemetering terminal as claimed in claim 1, is characterized in that: described system power supply module comprises power-switching circuit; Described DC power input interface module comprises direct supply input interface and power protecting circuit; Described main electro-detection module is connected with cpu system by GPIO.
9. multi-functional telemetering terminal as claimed in claim 1, is characterized in that: described RS485-1 interface module is connected with CPU by UART with RS232-1 interface module; Rainfall acquisition module is connected with cpu system by interrupting I/O.
10. multi-functional telemetering terminal as claimed in claim 1, is characterized in that: described GPS is connected with cpu system by UART or SPI interface, and is provided with antenna; Described data memory module is connected with cpu system by SPI or I2C interface.
CN201420150530.XU 2014-03-31 2014-03-31 Multifunctional remote measuring terminal CN203745892U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104200628A (en) * 2014-09-01 2014-12-10 中国东方电气集团有限公司 Industrial GPRS monitoring terminal
CN104464249A (en) * 2014-12-18 2015-03-25 重庆多邦科技发展有限公司 Telemetry terminal machine with low cost, low power consumption, small size and small system
CN104765471A (en) * 2015-04-09 2015-07-08 合肥三立自动化工程有限公司 Novel remote sensing terminal with soft keyboard
CN104867310A (en) * 2015-05-11 2015-08-26 李书英 Multi-channel remote metering terminal
CN104899112A (en) * 2015-06-29 2015-09-09 厦门四信通信科技有限公司 Fault self-restoration device used in CPU system deep sleep mode
CN105788211A (en) * 2016-03-02 2016-07-20 华东师范大学 Portable positionable multi-interface data measuring, collecting and transmitting instrument
CN108109360A (en) * 2017-12-21 2018-06-01 重庆多邦科技股份有限公司 A kind of wireless ten thousand Netcoms terminating machine of Internet of Things

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104200628A (en) * 2014-09-01 2014-12-10 中国东方电气集团有限公司 Industrial GPRS monitoring terminal
CN104200628B (en) * 2014-09-01 2017-05-31 中国东方电气集团有限公司 A kind of industrial GPRS monitor terminals
CN104464249A (en) * 2014-12-18 2015-03-25 重庆多邦科技发展有限公司 Telemetry terminal machine with low cost, low power consumption, small size and small system
CN104765471A (en) * 2015-04-09 2015-07-08 合肥三立自动化工程有限公司 Novel remote sensing terminal with soft keyboard
CN104867310A (en) * 2015-05-11 2015-08-26 李书英 Multi-channel remote metering terminal
CN104899112A (en) * 2015-06-29 2015-09-09 厦门四信通信科技有限公司 Fault self-restoration device used in CPU system deep sleep mode
CN105788211A (en) * 2016-03-02 2016-07-20 华东师范大学 Portable positionable multi-interface data measuring, collecting and transmitting instrument
CN108109360A (en) * 2017-12-21 2018-06-01 重庆多邦科技股份有限公司 A kind of wireless ten thousand Netcoms terminating machine of Internet of Things

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