CN113358158A - Intelligent monitoring device for bridge health state - Google Patents

Intelligent monitoring device for bridge health state Download PDF

Info

Publication number
CN113358158A
CN113358158A CN202110707831.2A CN202110707831A CN113358158A CN 113358158 A CN113358158 A CN 113358158A CN 202110707831 A CN202110707831 A CN 202110707831A CN 113358158 A CN113358158 A CN 113358158A
Authority
CN
China
Prior art keywords
module
shell
sensor module
sensor
power
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.)
Withdrawn
Application number
CN202110707831.2A
Other languages
Chinese (zh)
Inventor
时跃强
高伟
刘光明
李春艳
吴坤
孙朋帅
范占锋
罗会
李晓光
王柳
刘子雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202110707831.2A priority Critical patent/CN113358158A/en
Publication of CN113358158A publication Critical patent/CN113358158A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses an intelligent monitoring device for bridge health state. The intelligent pier health monitoring device based on the Internet of things comprises a body, a shell, a first end and a second end, wherein the first end and the second end of the body of the intelligent pier health monitoring device based on the Internet of things are arranged at the upper end and the bottom end of a bridge pier of a bridge respectively, and are covered on the first end and the second end of the body respectively through the first end and the second end of the shell. By the mode, the health states of the two ends of the bridge pier can be monitored simultaneously, and a better bridge pier health monitoring effect is achieved.

Description

Intelligent monitoring device for bridge health state
Technical Field
The invention relates to the technical field of internet, in particular to an intelligent monitoring device for bridge health state.
Background
In recent years, bridge collapse events occur in many places in our country, huge economic loss is directly brought to society, and meanwhile, the life safety of people is seriously threatened. Although relevant departments can regularly detect the quality of the bridge, the long period is not an effective means for preventing the bridge from collapsing, so that a system capable of monitoring the running state of the bridge in real time is needed for completing the monitoring work of various parameters of the bridge, and bridge managers can be informed to take corresponding measures in time when the running state of the bridge is abnormal, so that the loss is reduced to the maximum extent.
Disclosure of Invention
The invention mainly solves the technical problem of providing an intelligent monitoring device for bridge health state, which can monitor the dynamic changes of two ends of a bridge pier for a long time.
In order to solve the technical problems, the invention adopts a technical scheme that: provide bridge health state intelligent monitoring device, include: the solar charging device comprises a shell, a first terminal, a second terminal and a power-on cable, wherein the shell comprises a first end, a second end, a first joint, a second joint and the power-on cable, a solar cell panel is constructed on the outer surface of the first end of the shell, a first power module comprising a first secondary battery is arranged in the first end of the shell, the first power module is electrically connected with the solar cell panel, the first secondary battery can be charged by the solar cell panel through the first power module, the first joint is respectively electrically connected with the power-on cable and the first power module, and the second joint is electrically connected with the power-on cable; and a body comprising a body first end, a body second end; the first end of the body comprises a control module, a second power supply module comprising a second secondary battery, a first sensor module, a communication module and a first interface, the first interface is used for connecting the first connector, and the control module is electrically connected with the second power supply module, the first sensor module, the communication module and the first interface respectively; the second end of the body comprises a second sensor module and a second interface, the second interface is used for connecting the second connector, and the second sensor module is electrically connected with the second interface; the first end of the body is used for being arranged at the upper end of a pier, the second end of the body is used for being arranged at the bottom end of the pier, the first end of the shell is covered on the first end of the body, so that the first end of the body is positioned in a closed cavity formed by combining the first end of the shell with the upper end of the pier, the second end of the shell is covered on the second end of the body, and the second end of the body is positioned in the closed cavity formed by combining the second end of the shell with the upper end of the pier, so that the body is protected by the shell, and interference of external factors on the first sensor module and the second sensor module is avoided; the first interface is connected with the first connector, and the second interface is connected with the second connector, so that the first end of the body is electrically connected with the first power supply module, and the first end of the body is electrically connected with the second end of the body through the electrified cable; the first sensor module is used for collecting monitoring data of the upper end of a bridge pier in real time, the second sensor module is used for collecting monitoring data of the bottom end of the bridge pier in real time, the first sensor module and the second sensor module report collected monitoring data information to the control module at preset intervals respectively, the control module sends the received monitoring data information reported by the first sensor module and the second sensor module to the communication module, and the communication module sends the monitoring data information reported by the first sensor module and the second sensor module to the server.
Wherein, casing first end and casing second end are the drop shape respectively.
The first end of the body is used for being arranged on the part above the water surface at the upper end of the pier, and the second end of the body is used for being arranged on the part below the water surface at the bottom end of the pier.
According to the above scheme, the first end and the second end of the body of the intelligent monitoring device for the health state of the bridge are respectively arranged at the upper end and the bottom end of the bridge pier of the bridge, and the first end and the second end of the body are respectively covered on the first end and the second end of the body through the first end and the second end of the shell, so that the body can be effectively protected by the shell, interference caused by external factors on the first sensor module and the second sensor module can be avoided, furthermore, a transmission channel for signals and electric power can be provided between the first end and the second end of the body through a structure such as an electrified cable of the shell, and a solar power generation system at the first end of the shell can be used for supplying power to the body, after the intelligent monitoring device for the health state of the bridge is arranged on the bridge pier, the first end of the body can monitor the state at the upper end of the bridge pier, and the second end of the body can monitor the state at the bottom end of the bridge pier, the health state monitoring device can send the monitored data information to the server, the health state of the bridge pier is monitored, the states of the two ends of the bridge pier can be monitored respectively, particularly when the bottom end of the bridge pier is below the water surface, the health state of the bottom end of the bridge pier and the health state of the upper end of the bridge pier are greatly different due to the action of river water, and only the upper end or the bottom end of the bridge pier is monitored by the monitoring device in the traditional mode.
Drawings
FIG. 1 is a schematic diagram of a hardware structure of an embodiment of an intelligent monitoring device for bridge health status according to the present invention;
FIG. 2 is a schematic view of the intelligent bridge health monitoring device in the embodiment of FIG. 1 installed at two ends of a bridge pier;
fig. 3 is a schematic structural diagram of a first end of a housing in the intelligent bridge health state monitoring device in the embodiment of fig. 1.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to fig. 1, fig. 1 is a schematic diagram of a hardware structure of an embodiment of an intelligent monitoring device for bridge health status according to the present invention.
As shown in fig. 1, the intelligent monitoring device for bridge health status in this embodiment includes: the connector comprises a shell and a body, wherein the shell comprises a shell first end 21, a shell second end 22, a first connector 24, a second connector 25 and an electrified cable 23, and the body comprises a body first end 11 and a body second end 12.
Wherein, the first end 21 of the housing further includes a first power module 261, a solar cell panel 262, a first secondary battery 263, the first power module 261 respectively with the solar cell panel 262, the first secondary battery 263, the first joint 24 is electrically connected, the solar cell panel 262 is constructed on the outer surface of the first end 21 of the housing, the first secondary battery 263 and the first power module 261 are disposed inside the first end 21 of the housing, the solar cell panel 262 can convert the light energy into the electric energy and charge the first secondary battery 263 through the first power module 261, and the solar cell panel 262 can be a monocrystalline silicon solar panel or a polycrystalline silicon solar panel.
Further, the first power module 261 can output through the first connector 24 using the electric energy stored in the first secondary battery 263.
Further, the first connector 24, the second connector 25 and the energizing cable 23 are electrically connected.
The first end 11 of the body further includes a control module 111, a second power module 112 including a second secondary battery 113, a first sensor module 115, a communication module 114, and a first interface 116, the first interface 116 is used for connecting the first connector 24, and the control module 111 is electrically connected to the second power module 112, the first sensor module 115, the communication module 114, and the first interface 116, respectively.
The second end 12 of the body includes a second sensor module 121 and a second interface 122, the second interface 122 is used for connecting the second connector 25, and the second sensor module 121 is electrically connected to the second interface 122.
Further, the first sensor module 115 and the second sensor module 121 may include any one or more of a differential pressure type strain gauge, a surface type strain gauge, a temperature sensor, a humidity sensor, a magnetoelectric vibration sensor, an acceleration sensor, and an angular velocity sensor, respectively.
Further, the control module 111, the second power module 112, the first sensor module 115, the communication module 114, the first power module 261, and the second sensor module 121 may be circuits including at least one processor, circuits including at least one single chip, or a combination of multiple circuits or chips, as long as the corresponding functions can be realized. It is understood that, for those skilled in the art, common electronic components such as a CPU, an MCU, a crystal oscillator, a resistor, a capacitor, an amplifier, a comparator, a triode, a MOS transistor, etc. may also be used, and the corresponding functions of the circuits combined in any combination manner and electrically connected may be realized in a pure hardware manner.
Further, the control module 111, the second power module 112, the first sensor module 115, the communication module 114, the first power module 261, and the second sensor module 121 may further include a storage, respectively, where the storage may be used for data information, and the storage may be a read-only storage, a random read-write storage, or a combination of a read-only storage and a random read-write storage, and may be used for storing data information and programs.
The first interface 116 is connected to the first connector 24, and the second interface 122 is connected to the second connector 25, so that the first end 11 of the body is electrically connected to the first power module 261, the first end 11 of the body is electrically connected to the second end 12 of the body through the power cable 23, the first power module 261 can charge the second secondary battery 113 of the second power module 112 through the first secondary battery 113, and the second end 12 of the body is powered through the first power module 112.
Referring to fig. 1-2, fig. 2 is a schematic view illustrating the intelligent bridge health monitoring device in the embodiment of fig. 1 disposed at two ends of a bridge pier.
Wherein, the first end 11 of body is used for setting up in the pier upper end, the body second end 12 is used for setting up in the pier bottom, the first end cover 21 of casing is located on the first end 11 of body, make the first end 11 of body be in the airtight cavity that the first end 21 of casing and pier upper end combine to form, casing second end 12 covers on body second end 22, make the body second end 12 be in the airtight cavity that the second end 22 of casing and pier bottom combine to form, thereby utilize the casing protection body, and avoid the interference that external factors caused first sensor module 115 and second sensor module 121.
Referring to fig. 1-3, fig. 3 is a schematic structural diagram of a first end of a housing of the intelligent monitoring device for bridge health status in the embodiment of fig. 1.
Wherein, the surface structure of casing first end 21 has solar cell panel 262, and casing first end 21 and casing second end 22 are the drop shape respectively, and the cooperation rainwater is washd with the wave, can prevent effectively that silt dust from piling up on both.
Wherein, the first end 11 of body can be used for setting up the part on the surface of water of pier upper end, and the second end 12 of body can be used for setting up the part under the surface of water of pier bottom to the data information at the upper end of real-time supervision pier and bottom both ends.
Wherein, first sensor module 115 is used for gathering the monitoring data of pier upper end in real time, and second sensor module 121 is used for gathering the monitoring data of pier bottom in real time, and every interval preset time of first sensor module 115 module and first sensor module 121 module, for example: the collected monitoring data information is reported to the control module 111 within 1 hour, 2 hours, 12 hours, 24 hours and the like, the control module 111 sends the received monitoring data information reported by the first sensor module 115 and the second sensor module 121 to the communication module 114, and the communication module 114 can send the monitoring data information reported by the first sensor module 115 and the second sensor module 121 to a server through general technical means such as GPRS or NB-IOT and the like, so that the periodic monitoring process of the states at the two ends of the bridge pier is completed.
According to the above scheme, the first end and the second end of the body of the intelligent monitoring device for the health state of the bridge are respectively arranged at the upper end and the bottom end of the bridge pier of the bridge, and the first end and the second end of the body are respectively covered on the first end and the second end of the body through the first end and the second end of the shell, so that the body can be effectively protected by the shell, interference caused by external factors on the first sensor module and the second sensor module can be avoided, furthermore, a transmission channel for signals and electric power can be provided between the first end and the second end of the body through a structure such as an electrified cable of the shell, and a solar power generation system at the first end of the shell can be used for supplying power to the body, after the intelligent monitoring device for the health state of the bridge is arranged on the bridge pier, the first end of the body can monitor the state at the upper end of the bridge pier, and the second end of the body can monitor the state at the bottom end of the bridge pier, the health state monitoring device can send the monitored data information to the server, the health state of the bridge pier is monitored, the states of the two ends of the bridge pier can be monitored respectively, particularly when the bottom end of the bridge pier is below the water surface, the health state of the bottom end of the bridge pier and the health state of the upper end of the bridge pier are greatly different due to the action of river water, and only the upper end or the bottom end of the bridge pier is monitored by the monitoring device in the traditional mode.
In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (4)

1. Bridge health state intelligent monitoring device, its characterized in that, include:
the solar charging device comprises a shell, a first terminal, a second terminal and a power-on cable, wherein the shell comprises a first end, a second end, a first joint, a second joint and the power-on cable, a solar cell panel is constructed on the outer surface of the first end of the shell, a first power module comprising a first secondary battery is arranged in the first end of the shell, the first power module is electrically connected with the solar cell panel, the first secondary battery can be charged by the solar cell panel through the first power module, the first joint is respectively electrically connected with the power-on cable and the first power module, and the second joint is electrically connected with the power-on cable; and
a body including a body first end, a body second end;
the first end of the body comprises a control module, a second power supply module comprising a second secondary battery, a first sensor module, a communication module and a first interface, the first interface is used for connecting the first connector, and the control module is electrically connected with the second power supply module, the first sensor module, the communication module and the first interface respectively;
the second end of the body comprises a second sensor module and a second interface, the second interface is used for connecting the second connector, and the second sensor module is electrically connected with the second interface;
the first end of the body is used for being arranged at the upper end of a pier, the second end of the body is used for being arranged at the bottom end of the pier, the first end of the shell is covered on the first end of the body, so that the first end of the body is positioned in a closed cavity formed by combining the first end of the shell and the upper end of the pier, the second end of the shell covers the second end of the body, and the second end of the body is positioned in the closed cavity formed by combining the second end of the shell and the upper end of the pier, so that the body is protected by the shell, and interference of external factors on the first sensor module and the second sensor module is avoided;
the first interface is connected with the first connector, and the second interface is connected with the second connector, so that the first end of the body is electrically connected with the first power module, the first end of the body is electrically connected with the second end of the body through the electrifying cable, the first power module can charge the second secondary battery of the second power module through the first secondary battery, and the second end of the body is supplied with power through the first power module;
the first sensor module is used for collecting monitoring data of the upper end of a bridge pier in real time, the second sensor module is used for collecting monitoring data of the bottom end of the bridge pier in real time, the first sensor module and the second sensor module report collected monitoring data information to the control module at preset intervals, the control module sends the received monitoring data information reported by the first sensor module and the second sensor module to the communication module, and the communication module sends the monitoring data information reported by the first sensor module and the second sensor module to the server.
2. The intelligent bridge health monitoring device of claim 1, comprising:
the first sensor module and the second sensor module may respectively include any one or more of a differential pressure type strain gauge sensor, a surface type strain gauge, a temperature sensor, a humidity sensor, a magnetoelectric vibration sensor, an acceleration sensor, and an angular velocity sensor.
3. The intelligent bridge health monitoring device of claim 2, comprising:
the first end of the shell and the second end of the shell are respectively in a water drop shape.
4. The intelligent bridge health monitoring device of claim 3, comprising:
the first end of the body is used for being arranged on the part above the water surface at the upper end of the pier, and the second end of the body is used for being arranged on the part below the water surface at the bottom end of the pier.
CN202110707831.2A 2021-06-24 2021-06-24 Intelligent monitoring device for bridge health state Withdrawn CN113358158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110707831.2A CN113358158A (en) 2021-06-24 2021-06-24 Intelligent monitoring device for bridge health state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110707831.2A CN113358158A (en) 2021-06-24 2021-06-24 Intelligent monitoring device for bridge health state

Publications (1)

Publication Number Publication Date
CN113358158A true CN113358158A (en) 2021-09-07

Family

ID=77536283

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110707831.2A Withdrawn CN113358158A (en) 2021-06-24 2021-06-24 Intelligent monitoring device for bridge health state

Country Status (1)

Country Link
CN (1) CN113358158A (en)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001108491A (en) * 1999-10-12 2001-04-20 Central Japan Railway Co Scouring-monitoring system
US20110255735A1 (en) * 2010-04-20 2011-10-20 National Applied Research Laboratories Probe monitoring system for riverbed elevation monitoring at bridge piers
CN103175563A (en) * 2011-12-23 2013-06-26 西安迅腾科技有限责任公司 Support device of bridge health monitoring sensor shell
CN103179819A (en) * 2011-12-20 2013-06-26 西安迅腾科技有限责任公司 Shell for loading bridge health monitoring data collecting equipment
US20150153152A1 (en) * 2013-12-02 2015-06-04 National Applied Research Laboratories Magnetic device for measuring scour depth
CN105784007A (en) * 2016-05-21 2016-07-20 徐洪军 Bridge-safety early-warning system based on technology of internet of things
CN105890663A (en) * 2016-05-17 2016-08-24 哈尔滨共阳科技咨询有限公司 Bridge deformation real-time monitoring system
CN206037954U (en) * 2016-08-12 2017-03-22 武汉华创北斗技术有限公司 Bridge deformation detecting system
CN206339257U (en) * 2016-11-10 2017-07-18 西京学院 A kind of self-powered bridge real-time radio health monitoring systems
CN207231525U (en) * 2017-07-11 2018-04-13 赵国柱 A kind of concrete pier health monitoring device
US20180136085A1 (en) * 2016-11-17 2018-05-17 Heuristic Actions, Inc. Devices, systems and methods, and sensor modules for use in monitoring the structural health of structures
CN109975811A (en) * 2019-04-26 2019-07-05 中铁大桥(南京)桥隧诊治有限公司 A kind of the bridge pier with highrise pile cap local scour on-line monitoring platform and method of suitable unimodal current
CN111885192A (en) * 2020-07-30 2020-11-03 福建农林大学 Bridge health intelligent monitoring system based on NB-IoT

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001108491A (en) * 1999-10-12 2001-04-20 Central Japan Railway Co Scouring-monitoring system
US20110255735A1 (en) * 2010-04-20 2011-10-20 National Applied Research Laboratories Probe monitoring system for riverbed elevation monitoring at bridge piers
CN103179819A (en) * 2011-12-20 2013-06-26 西安迅腾科技有限责任公司 Shell for loading bridge health monitoring data collecting equipment
CN103175563A (en) * 2011-12-23 2013-06-26 西安迅腾科技有限责任公司 Support device of bridge health monitoring sensor shell
US20150153152A1 (en) * 2013-12-02 2015-06-04 National Applied Research Laboratories Magnetic device for measuring scour depth
CN105890663A (en) * 2016-05-17 2016-08-24 哈尔滨共阳科技咨询有限公司 Bridge deformation real-time monitoring system
CN105784007A (en) * 2016-05-21 2016-07-20 徐洪军 Bridge-safety early-warning system based on technology of internet of things
CN206037954U (en) * 2016-08-12 2017-03-22 武汉华创北斗技术有限公司 Bridge deformation detecting system
CN206339257U (en) * 2016-11-10 2017-07-18 西京学院 A kind of self-powered bridge real-time radio health monitoring systems
US20180136085A1 (en) * 2016-11-17 2018-05-17 Heuristic Actions, Inc. Devices, systems and methods, and sensor modules for use in monitoring the structural health of structures
CN207231525U (en) * 2017-07-11 2018-04-13 赵国柱 A kind of concrete pier health monitoring device
CN109975811A (en) * 2019-04-26 2019-07-05 中铁大桥(南京)桥隧诊治有限公司 A kind of the bridge pier with highrise pile cap local scour on-line monitoring platform and method of suitable unimodal current
CN111885192A (en) * 2020-07-30 2020-11-03 福建农林大学 Bridge health intelligent monitoring system based on NB-IoT

Similar Documents

Publication Publication Date Title
CN204178533U (en) Remote intelligent monitoring instrument
CN113297865B (en) Switch cabinet data management method based on RFID temperature label
CN106375443A (en) Engineering condition monitoring system
CN105403248B (en) A kind of low-power consumption environmental monitoring system
CN206930312U (en) Steel tower running status on-Line Monitor Device
CN206164080U (en) Microcomputer harmonic elimination device
CN113358158A (en) Intelligent monitoring device for bridge health state
CN206178785U (en) Power -down protection device
CN210742538U (en) Low-power-consumption wireless rainfall acquisition instrument supporting Beidou positioning
CN218976783U (en) Geological disaster data acquisition and communication device
CN218866603U (en) Irrigation district telemetering measurement terminating machine
CN217442600U (en) Remote transmission's multi-parameter bridge monitor
CN207868329U (en) From control module and battery management system
CN205679593U (en) A kind of imflammable gas detector based on bluetooth
CN215068580U (en) Anti-drop early warning sieve
CN210625712U (en) Low-power-consumption wireless vibrating wire acquisition instrument supporting Beidou positioning
CN105626501A (en) Fault diagnosis tester of electric submersible pump working condition monitor system
CN205157796U (en) Nuclear power station seismic surveillance system
CN112291733B (en) Intelligent cloud vibration monitoring system and method based on Bluetooth and NBIOT dual wireless technology
CN108037703A (en) The portable calibrating installation and calibration method of angular displacement sensor installation site
CN210513018U (en) Wireless crack monitor
CN114006064A (en) Dynamic temperature monitoring system based on electric bicycle lithium battery temperature
CN112345946A (en) Detection method and detection equipment for available capacity of power battery
CN205920130U (en) IEPE type intelligence acceleration sensor
CN205175551U (en) Wind generating set vibration detection system based on DSP

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20210907

WW01 Invention patent application withdrawn after publication