CN102759422B - Intelligent type mine pressure monitoring substation and correction method thereof - Google Patents
Intelligent type mine pressure monitoring substation and correction method thereof Download PDFInfo
- Publication number
- CN102759422B CN102759422B CN201110115707.3A CN201110115707A CN102759422B CN 102759422 B CN102759422 B CN 102759422B CN 201110115707 A CN201110115707 A CN 201110115707A CN 102759422 B CN102759422 B CN 102759422B
- Authority
- CN
- China
- Prior art keywords
- module
- intelligent
- data transfer
- pressure monitoring
- monitoring substation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a kind of Intelligent type mine pressure monitoring substation and correction method thereof, it is made up of single-chip microcomputer, communication module RSM3485, AD conversion module, Liquid Crystal Module, operation amplifier module, strain bridge pressure sensor, a wireless data transfer module and intelligent data collector; Wireless data transfer module is highly integrated super low-power consumption half-duplex micropower module, and it embeds in above-mentioned single-chip microcomputer and communication module RSM3485 circuit.The present invention achieves auto-adjustment function by the potentiometer of a software simulation, and precision is up to more than 0.5 grade; Do not need with mine lamp irradiate wake up, only need staff with collector aside 10-50 rice right position pass by, just automatically can complete collection.
Description
Technical field
The present invention relates to ore pressure monitor substation.
Background technology
At present, in coal mining, in order to production safety will be monitored roof pressure.Ore pressure monitor substation (or claiming ore pressure monitor instrument) in the market has multiple, as shown in Figure 1, it is made up of single-chip microcomputer, communication module RSM3485, AD conversion module, Liquid Crystal Module, operation amplifier module, calibration potentiometer and strain bridge pressure sensor the ore pressure monitor substation relevant with the present invention.Its deficiency is: 1, need during signal calibration to calibrate with two potentiometers, piecemeal regulator potentiometer, bothers very much, sometimes needs for 10 a few minutes, and can only be transferred to less than 2 grades; And potentiometer is mechanical part, can because vibration, temperature, falls and changes, and not can ensure product long-time stability.2, similar products are all use infrared number to transmit the functions such as simple data acquisition, infrared number passes distance and is less than 1.5 meters, can not complete automatic data logging, when checking meter, staff need stand in stool irradiates red the outside with mine lamp could be read data, can not complete automatic data logging.
Summary of the invention
The object of the invention is, for solving ore pressure monitor substation calibration difficulty and difficult problem of checking meter, to make improvements, design a kind of Intelligent type mine pressure monitoring substation, propose correction method simultaneously.
A kind of Intelligent type mine pressure monitoring substation, it is made up of single-chip microcomputer, communication module RSM3485, AD conversion module, Liquid Crystal Module, operation amplifier module and strain bridge pressure sensor, it is characterized in that, it also comprises a wireless data transfer module and intelligent data collector; Wherein:
Described wireless data transfer module embeds in above-mentioned single-chip microcomputer and communication module RSM3485 circuit; During embedding, the pin RXD of wireless data transfer module and the pin RXD of communication module RSM3485 is connected on monolithic under-chassis TXD simultaneously, the pin TXD of communication module RSM3485 is connected on monolithic under-chassis RXD by a diode, and the pin TXD of wireless data transfer module is connected with the contact of above-mentioned diode with monolithic under-chassis RXD by a resistance.
Described intelligent data collector is formed by connecting by main control module M430FG4618, wireless data transfer module, key-press module ZLG7290B, battery interface, the communication of man-machine interaction Liquid Crystal Module.
Above-mentioned wireless data transfer module is all highly integrated super low-power consumption half-duplex micropower modules, the super low-power consumption module SX1212 that the height that such as Shenzhen An Meitong Science and Technology Ltd. produces is integrated.
When user uses intelligent data collector, when sending order to main control module M430FG4618 by key-press module ZLG7290B, main control module M430FG4618U1 identifies keyboard commands automatically, and be in which interface according to Liquid Crystal Module is current, thus sending different orders to wireless data transfer module, wireless data transfer module issues Intelligent type mine pressure monitoring substation by radiowave again; Intelligent data collector receives the signal that Intelligent type mine pressure monitoring substation sends simultaneously.
Above-mentioned Intelligent type mine pressure monitoring substation, formed by diode and resistance and coordinate circuit accurately, communication module RSM3485 and wireless data transfer module compatibility is made to be connected on same interface, when single-chip microcomputer sends, communication module RSM3485 and wireless data transfer module receive simultaneously, when wireless data transfer module sends because there being the existence of diode, the circuit of communication module RSM3485 is unaffected, when communication module RSM3485 sends because there being the existence of resistance, the circuit of wireless data transfer module is unaffected, the on-line checkingi communication function of system can not be had influence on when achieving wireless check and correction.
The simulating signal of Intelligent type mine pressure monitoring substation produces, by operation amplifier module OP07BP and AD conversion module collection by straining bridge pressure sensor; Directly address is set by networking by computer software; Complete data by the E2PPROM that single-chip microcomputer is built-in to store; Connect liquid crystal by Liquid Crystal Module LCD1 and complete data display; Communication is completed by communication module module RSM3485; Wireless calibration function is completed by wireless data transfer module; Be connected with computer by communication module RSM3485, form ore deposit pressure supervisory system.
During use, strain bridge pressure sensor is connected by the liquid of rapid-acting coupling and tested device, the differential signal of change in resistance is produced by fluid pressure, amplified by operation amplifier module OP07BP and enter AD conversion module after driving, single-chip microcomputer obtains final data by SPI interface, can show on charactron or Liquid Crystal Module LCD1 and store after process, carry out image data by wireless meter reading or on-line normalization, data store, setup parameter, and data upload PC can be carried out data processing.Intelligent Single-Chip Based receives wireless instructions, and completes auto-adjustment, checks meter, parameters etc.
Wireless data transfer module is the hyperchannel embedded radio digital transmission module of a new generation, can arrange multiple channel, can online modification serial ports speed, and emissive power, the various parameters such as radio frequency speed, stepping is 1KHz.This module innovatively have employed efficient circulation intertexture error correction and detection coding, its coding gain up to nearly 3dBm, far away higher than general forward error correction coding, antagonism bursty interference and all larger improvement of sensitivity.Encode simultaneously and also comprise reliable error detecing capability, can automatically filtering mistake and deceptive information, really achieve connection.So this module is particularly suitable for using with in the strongly disturbing rugged surroundings such as industrial circle.
The intelligent calibration function of Intelligent type mine pressure monitoring substation of the present invention mainly completes based on the software potentiometer of a simulation, does not need hardware potentiometer to participate in.Its operation steps is as follows:
The first step, is first connected to Intelligent type mine pressure monitoring substation on normal pressure chronographic recorder, and after start powers on, program enters initial phase, enters display routine by default parameters, then fixed for normal pressure chronographic recorder in 0 value;
Second step, open the key on intelligent data collector, intelligent data collector sends calibration order and people is mutual, presses Parameter Set-up Menu key, enter optimum configurations interface, enter again " parameters A ", input corresponding anchor stress table numbering, by acknowledgement key, intelligent data collector sends calibration order to Intelligent type mine pressure monitoring substation, to distribute and after receiving feedback information, Intelligent type mine pressure monitoring substation shows " O ", and so far A parameter correction terminates;
3rd step, normal pressure chronographic recorder is set in the setting value of 60Mpa or needs, namely table can show data, these data not necessarily 60, intelligent data collector enters " parameters B " interface, the setting value of 60Mpa or needs is inputted after above-mentioned numbering, after acknowledgement key, intelligent data collector sends calibration order to Intelligent type mine pressure monitoring substation, distribute and after receiving the feedback information of table, namely table can show data, these data are contrasted with setting value, on table, display must be just 60, and so far B parameter correction terminates.
After " parameter A " and " parameter B " is arranged, namely Intelligent type mine pressure monitoring substation precision reaches more than 0.5 grade, and calibration completes.
Good effect of the present invention is;
1, single-chip microcomputer inside carries storer, and all parameters are stored in wherein, and have better stabilization function than additional storer, cost also reduces greatly.
2, data address coding is by numbering after computer networking, simply saves trouble.
3, auto-adjustment function is achieved by the potentiometer of a software simulation.
4, precision is up to more than 0.5 grade, is not regulated by mechanical part, and precision is not by the impact of vibrations, temperature, movement.
5, do not need with mine lamp irradiate wake up, only need staff with collector aside 10-50 rice right position pass by, just automatically can complete collection.
6, can this equipment be repaired by collector or other various parameters are set.
7, the frequency radio communications that wireless data communication about module 433MHz is adjustable, can be arranged flexibly according to on-the-spot complex environment, stronger than the apparatus adaptability of single fixed frequency; 433MHz frequency band belongs to low frequency section in addition, more a lot of by force than the frequency diffracting power of the 1GMHz of the technology uses such as some ZIGBEE, and obviously good to the ride-through capability of barrier, open field transmission range can reach more than 700 meters.
8, wireless data communication module emissive power is large, but low in energy consumption, can with more than 2 years during single-unit No. 5 battery 2000mA.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of existing ore pressure monitor substation.
Fig. 2 is the schematic block circuit diagram of the embodiment of the present invention.
Fig. 3 is the schematic block circuit diagram of intelligent data collector in the embodiment of the present invention.
Embodiment
The technical scheme of intelligent mine pressure Monitor Sub-Station of Less is further illustrated with reference to accompanying drawing.
Fig. 1 is the schematic block circuit diagram of existing ore pressure monitor substation, and as can be seen from the figure, it is made up of single-chip microcomputer, communication module RSM3485, AD conversion module, Liquid Crystal Module, operation amplifier module, calibration potentiometer and strain bridge pressure sensor.
As shown in Figure 2, intelligent mine pressure Monitor Sub-Station of Less of the present invention is made up of single-chip microcomputer U1, communication module RSM3485, AD conversion module, Liquid Crystal Module LCD1, operation amplifier module OP07BP and strain bridge pressure sensor; It also comprises a wireless data transfer module; Wireless data transfer module is the integrated super low-power consumption module SX1212 of height that An Meitong Science and Technology Ltd. of Shenzhen produces.
Wireless data transfer module embeds in above-mentioned single-chip microcomputer U1 and communication module RSM3485 circuit; During embedding, the pin RXD of wireless data transfer module and the pin RXD of communication module RSM485 is connected on monolithic under-chassis TXD simultaneously, the pin TXD of communication module RSM3485 is connected on monolithic under-chassis RXD by a diode, and the pin TXD of wireless data transfer module is connected with the contact of above-mentioned diode with monolithic under-chassis RXD by a resistance.
It also comprises an intelligent data collector, and intelligent data collector as shown in Figure 3, is formed by connecting by main control module M430FG4618, super low-power consumption module SX1212, key-press module ZLG7290B, battery interface, man-machine interaction Liquid Crystal Module.Wherein:
U1 is host CPU, adopts M430FG4618, band clock in this module, thus can deadline writing function; U2 is super low-power consumption module SX1212, is the module of transceiver; U3 is key-press module, and model is: ZLG7290B, mainly completes keyboard entry function; U4 is battery interface, is used for accepting powered battery; U5 is Liquid Crystal Module, is used for finishing man-machine interaction.
Principle of work is: when user sends order to U1 by keyboard U3, U1 identifies keyboard commands automatically, and is in which interface according to U5 is current, thus sends different orders to wireless module U2, U2 issues table by radiowave again, process contrary during reception.
This collector can complete automatic acquisition function, has again calibration function.
During collection, by user facing to main frame, press and automatically gather key, display receives successfully, then collector is put in front of computer, and data are passed to computer by software.This computer needs 1 software and a serial ports wireless data transfer module, this module and above-mentioned module SX1212 are the modules of same model, and add the change-over panel of a serial ports TTL RS 232.
The operation steps of calibration is as follows:
The first step, is first connected to intelligent drilling hole stress sensor on normal pressure chronographic recorder, and after start powers on, program enters initial phase, enters display routine by default parameters, then fixed for normal pressure chronographic recorder in 0 value;
Second step, open the key on intelligent data collector, intelligent data collector sends calibration order and people is mutual, presses Parameter Set-up Menu key, enter optimum configurations interface, enter again " parameters A ", input corresponding intelligent drilling hole stress sensor numbering, by acknowledgement key, intelligent data collector sends calibration order to intelligent drilling hole stress sensor, to distribute and after receiving feedback information, intelligent drilling hole stress sensor display " O ", so far A parameter correction terminates;
3rd step, normal pressure chronographic recorder is set in the setting value of 60Mpa or needs, namely table can show data, these data not necessarily 60, intelligent data collector enters " parameters B " interface, the setting value of 60Mpa or needs is inputted after above-mentioned numbering, after acknowledgement key, intelligent data collector sends calibration order to intelligent drilling hole stress sensor, distribute and after receiving the feedback information of table, namely table can show data, these data are contrasted with setting value, on table, display must be just 60, and so far B parameter correction terminates.
After " parameter A " and " parameter B " correction terminates, namely intelligent drilling hole stress sensor precision reaches more than 0.5 grade, and calibration completes.
The annexation of intelligent collector is mainly described below:
As Fig. 3, the pin 3 of U2 is connected with the pin one 2 of U1, the pin 4 of U2 is connected with the pin one 9 of U1, the pin 5 of U2 is connected with the pin two 1 of U1, the pin 6 of U2 is connected with the pin 31 of U1, the pin 7 of U2 is connected with the pin 39 of U1, the pin one 4 of U3 is connected with the pin one 5 of U1, the pin one 9 of U3 is connected with the pin two 2 of U1, the pin two 0 of U3 is connected with the pin two 6 of U1, pin+the 3.3v of U4 is connected with the pin 43 of U1, the pin 42 of pin GND and the U1 of U4 is connected, the pin P0.15 of pin D0 and the U1 of U5 is connected, the pin P0.16 of pin D1 and the U1 of U5 is connected, the pin P0.17 of pin D2 and the U1 of U5 is connected, the pin P0.18 of pin D3 and the U1 of U5 is connected, the pin P0.19 of pin D4 and the U1 of U5 is connected, the pin P0.20 of pin D5 and the U1 of U5 is connected, the pin P0.21 of pin D6 and the U1 of U5 is connected, the pin P0.22 of pin D7 and the U1 of U5 is connected, the pin P0.29 of pin RST and the U1 of U5 is connected, the pin P0.28 of pin CS2 and the U1 of U5 is connected, the pin P0.27 of pin CS1 and the U1 of U5 is connected, the pin P0.23 of pin E and the U1 of U5 is connected, the pin P0.31 of pin D/I and the U1 of U5 is connected, the pin LIGHT+ of U5 meets+5V, the pin LIGHT-of U5 meets GND.
Above-mentioned single-chip microcomputer is fully-integrated low-power consumption mixed signal SOC (system on a chip) type MCU.Adopt model C 8051F310 series.Following is a list some key properties:
1, high speed 8051 microcontroller core: instruction pipeline structure; Execution time of the instruction of 70% is or two system clock cycles; Speed can reach 25MIPS (when clock frequency is 25MHz); The interrupt system of expansion.
2, storer: 1280 byte inner data RAM (1024+256); 16KB (C8051F310/1) or 8KB (C8051F312/3/4).
3, FLASH memory; Can in-system programming, sector-size is 512 bytes.
4, digital peripherals: 29/25 port I/O; All mouth lines all voltage of resistance to 5V; Hardware enhancement mode UART, SMBus and SPI serial ports; 4 general 16 digit counters/timers; 16 programmable counter/Timer Array (PCA); There is seizure/comparison module; Use the clock mode of PCA or timer and external clock reference.
5, clock source: internal programmable oscillator: 24.5MHz, the precision of ± 2%; Can support to operate without crystal UART.External oscillator: crystal, RC, C or external clock.
The device 6, with electrification reset in sheet, VDD monitor, WatchDog Timer and clock oscillator is the SOC (system on a chip) that really can work alone.FLASH memory also has in system reprogramming ability, can be used for non-volatile data storage, and allows on-the-spot renewal 8051 firmwares.User software has all peripheral hardwares and controls completely, can turn off any one or all peripheral hardwares to save power consumption.
Claims (3)
1. an Intelligent type mine pressure monitoring substation, it is made up of single-chip microcomputer, communication module RSM3485, AD conversion module, Liquid Crystal Module, operation amplifier module and strain bridge pressure sensor, it is characterized in that, it also comprises a wireless data transfer module and an intelligent data collector; Wherein:
Described wireless data transfer module embeds in above-mentioned single-chip microcomputer and communication module RSM3485 circuit; During embedding, the pin RXD of wireless data transfer module and the pin RXD of communication module RSM3485 is connected on monolithic under-chassis TXD simultaneously, the pin TXD of communication module RSM3485 is connected on monolithic under-chassis RXD by a diode, and the pin TXD of wireless data transfer module is connected with the contact of above-mentioned diode with monolithic under-chassis RXD by a resistance;
Described intelligent data collector, is formed by connecting by main control module M430FG4618, wireless data transfer module, key-press module ZLG7290B, battery interface, the communication of man-machine interaction Liquid Crystal Module;
Above-mentioned wireless data transfer module is all highly integrated super low-power consumption half-duplex micropower modules;
When user uses intelligent data collector, when sending order to main control module M430FG4618 by key-press module ZLG7290B, main control module M430FG4618 identifies keyboard commands automatically, and be in which interface according to man-machine interaction Liquid Crystal Module is current, thus sending different orders to wireless data transfer module, wireless data transfer module issues Intelligent type mine pressure monitoring substation by radiowave again; Intelligent data collector receives the signal that Intelligent type mine pressure monitoring substation sends simultaneously;
Above-mentioned Intelligent type mine pressure monitoring substation, formed by diode and resistance and coordinate circuit accurately, communication module RSM3485 and wireless data transfer module compatibility is made to be connected on same interface, when single-chip microcomputer sends, communication module RSM3485 and wireless data transfer module receive simultaneously, when wireless data transfer module sends because there being the existence of diode, the circuit of communication module RSM3485 is unaffected, when communication module RSM3485 sends because there being the existence of resistance, the circuit of wireless data transfer module is unaffected, the on-line checkingi communication function of system can not be had influence on when achieving wireless check and correction,
The simulating signal of Intelligent type mine pressure monitoring substation produces, by operation amplifier module and AD conversion module collection by straining bridge pressure sensor; Directly address is set by networking by computer software; Complete data by the E2PPROM that single-chip microcomputer is built-in to store; Shown by Liquid Crystal Module data; Communication is completed by communication module module RSM3485; Wireless calibration function is completed by wireless data transfer module; Be connected with computer by communication module RSM3485, form ore deposit pressure supervisory system;
During use, strain bridge pressure sensor is connected by the liquid of rapid-acting coupling and tested device, the differential signal of change in resistance is produced by fluid pressure, amplified by operation amplifier module and enter AD conversion module after driving, single-chip microcomputer obtains final data by SPI interface, can show on charactron or Liquid Crystal Module and store after process, carry out image data by intelligent data collector or on-line normalization, data store, setup parameter, and data upload PC can be carried out data processing; Intelligent Single-Chip Based receives wireless instructions, and completes auto-adjustment, checks meter and parameters.
2. Intelligent type mine pressure monitoring substation as claimed in claim 1, is characterized in that, described single-chip microcomputer adopts the single-chip microcomputer of model C 8051F310 series.
3. a correction method for Intelligent type mine pressure monitoring substation as claimed in claim 1, it is characterized in that, its operation steps is as follows:
The first step, is first connected to Intelligent type mine pressure monitoring substation on normal pressure chronographic recorder, and after start powers on, program enters initial phase, enters display routine by default parameters, then fixed for normal pressure chronographic recorder in 0 value;
Second step, open the key on intelligent data collector, intelligent data collector sends calibration order and people is mutual, presses Parameter Set-up Menu key, enter optimum configurations interface, enter again " parameters A ", input corresponding Intelligent type mine pressure monitoring substation numbering, by acknowledgement key, intelligent data collector sends calibration order to Intelligent type mine pressure monitoring substation, to distribute and after receiving feedback information, Intelligent type mine pressure monitoring substation display " 0 ", so far A parameter correction terminates;
3rd step, normal pressure chronographic recorder is set in the setting value of needs, namely chronographic recorder can show these data, intelligent data collector enters " parameters B " interface, inputs the setting value of needs, after above-mentioned numbering after acknowledgement key, intelligent data collector sends calibration order to Intelligent type mine pressure monitoring substation, to distribute and after receiving feedback information, namely intelligent data collector can show the setting value of needs, so far B parameter correction terminates;
After " parameter A " and " parameter B " correction terminates, namely Intelligent type mine pressure monitoring substation precision reaches more than 0.5 grade, and calibration completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110115707.3A CN102759422B (en) | 2011-04-24 | 2011-04-24 | Intelligent type mine pressure monitoring substation and correction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110115707.3A CN102759422B (en) | 2011-04-24 | 2011-04-24 | Intelligent type mine pressure monitoring substation and correction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102759422A CN102759422A (en) | 2012-10-31 |
| CN102759422B true CN102759422B (en) | 2016-04-06 |
Family
ID=47053960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110115707.3A Active CN102759422B (en) | 2011-04-24 | 2011-04-24 | Intelligent type mine pressure monitoring substation and correction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102759422B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476988B (en) * | 2014-11-11 | 2017-01-25 | 中国电子科技集团公司第三十八研究所 | Portable tire pressure sensor wireless diagnostic device |
| CN104484987B (en) * | 2014-11-14 | 2018-07-27 | 中国矿业大学 | The real-time dynamic radio monitoring device of coal mine work area roof safety and method |
| CN107659391A (en) * | 2017-11-22 | 2018-02-02 | 西安航空学院 | A kind of SCM Based telecommunication circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927211Y (en) * | 2006-06-08 | 2007-07-25 | 上海唐锐信息技术有限公司 | Wireless meter-recording collector of multi-path pulsing electric meter |
| CN101561245A (en) * | 2009-05-14 | 2009-10-21 | 长安大学 | Bridge strain detection sensor based on wireless sensing network interface |
| CN101738259A (en) * | 2009-12-08 | 2010-06-16 | 太原市电子研究设计院 | Wireless ad-hoc network temperature monitoring system of coal mine underground goaf |
| CN201540144U (en) * | 2009-11-02 | 2010-08-04 | 浙江威星智能仪表股份有限公司 | A hand-hold meter calibrator |
| CN202108544U (en) * | 2011-04-24 | 2012-01-11 | 山东大成电气有限公司 | Intelligent type mine pressure monitoring substation |
-
2011
- 2011-04-24 CN CN201110115707.3A patent/CN102759422B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927211Y (en) * | 2006-06-08 | 2007-07-25 | 上海唐锐信息技术有限公司 | Wireless meter-recording collector of multi-path pulsing electric meter |
| CN101561245A (en) * | 2009-05-14 | 2009-10-21 | 长安大学 | Bridge strain detection sensor based on wireless sensing network interface |
| CN201540144U (en) * | 2009-11-02 | 2010-08-04 | 浙江威星智能仪表股份有限公司 | A hand-hold meter calibrator |
| CN101738259A (en) * | 2009-12-08 | 2010-06-16 | 太原市电子研究设计院 | Wireless ad-hoc network temperature monitoring system of coal mine underground goaf |
| CN202108544U (en) * | 2011-04-24 | 2012-01-11 | 山东大成电气有限公司 | Intelligent type mine pressure monitoring substation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102759422A (en) | 2012-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201853116U (en) | System for automatically monitoring the environment of chicken house | |
| CN102759420B (en) | Intelligent borehole stress sensor and meter calibration method thereof | |
| CN202119386U (en) | Intelligent top plate displacement transducer | |
| CN103630170B (en) | A kind of Portable multi-sensor wireless transmission logging | |
| CN102759422B (en) | Intelligent type mine pressure monitoring substation and correction method thereof | |
| CN102759421B (en) | Intelligent anchor sensor and correction method thereof | |
| CN110095150A (en) | A kind of SCM Based temperature and humidity monitoring system | |
| CN203869727U (en) | Real-time monitoring system for crop growth environment data | |
| CN101101300B (en) | Public place air environment monitoring display system | |
| CN103475728A (en) | Orchard ecological environment remote monitoring system based on wireless sensor network | |
| CN202108544U (en) | Intelligent type mine pressure monitoring substation | |
| CN105526967A (en) | Measuring equipment and system based on intelligent terminal | |
| CN104637273A (en) | Machine tool internet of things wireless vibration acquisition node and data acquisition method | |
| CN203911975U (en) | Orchard eco-environment remote monitoring and management system based on wireless sensor network | |
| CN202110015U (en) | Intelligent anchor sensor | |
| CN102281052B (en) | General interface of intelligent sensor and intelligent sensor equipped therewith | |
| CN102256414A (en) | Terminal node of intelligent street lamp control system based on wireless sensor network | |
| CN202110014U (en) | Intelligent type boring stress sensor | |
| CN209182230U (en) | A kind of coal mine portable mobile wireless laser methane detection alarm | |
| CN102759325A (en) | Intelligent roof displacement sensor and meter calibration method thereof | |
| CN104155891B (en) | I＜2＞C-based networked transmitter and communication implementation method thereof | |
| CN202563780U (en) | One-chip machine experiment platform | |
| CN103869275A (en) | Measuring accuracy calibration method of intelligent single-phase watt-hour meter | |
| CN202304874U (en) | Thermotechnical type energy efficiency data acquisition terminal | |
| CN203386342U (en) | Wireless data acquisition terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Shandong Dacheng Dianqi Co., Ltd. Document name: Notice of amendment |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 271000 Guihua Branch Road West of Fengxiang Road, high tech Zone, Tai'an City, Shandong Province Patentee after: SHANDONG DACHENG ELECTRIC Co.,Ltd. Patentee after: Meng Hongxin Address before: 271000 Shandong City Dacheng Electric Co., Ltd., 16 Lingshan street, Taishan District, Tai'an, Shandong Patentee before: SHANDONG DACHENG ELECTRIC Co.,Ltd. Patentee before: Meng Hongxin |