CN111879399A - Low-power consumption wireless vibration sensor with screen display - Google Patents
Low-power consumption wireless vibration sensor with screen display Download PDFInfo
- Publication number
- CN111879399A CN111879399A CN202010621603.9A CN202010621603A CN111879399A CN 111879399 A CN111879399 A CN 111879399A CN 202010621603 A CN202010621603 A CN 202010621603A CN 111879399 A CN111879399 A CN 111879399A
- Authority
- CN
- China
- Prior art keywords
- vibration sensor
- communication module
- battery
- base
- ink screen
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/372—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by the application of an electric field
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention relates to the technology of vibration sensor equipment, in particular to a low-power consumption wireless vibration sensor with a screen display, which comprises a shell, an upper cover, a base, a wireless communication module, a main control board, a support, a vibration sensor, an ink screen and an ink screen driving unit, wherein the middle part of the upper cover is provided with a hollow part for installing the ink screen, the support is fixedly connected with the base, the wireless communication module is fixedly connected with the support, the wireless communication module tightly presses a battery and the main control board on the support, the vibration sensor is installed on the main control board, a probe of the vibration sensor is fixedly installed on the base through a screw, and the wireless communication module, the vibration sensor and the ink screen driving unit are all connected with the main control board. The substantial effects of the invention are as follows: the ink screen can show monitoring data and sensor self state, uses the ink screen can reduce the sensor consumption, places the battery between two circuit boards, through screw locking, can prevent that the battery from fixing insecurely and the measuring error who arouses.
Description
Technical Field
The invention relates to the technology of vibration sensor equipment, in particular to a low-power consumption wireless vibration sensor with screen display.
Background
The current vibration sensors are not equipped with a display screen in order to reduce power consumption and prolong the service life of a battery. However, in the vibration sensor in the industrial field, it is necessary to have an information display function. Such as: when the sensor electric quantity is about to exhaust and needs to be indicated, the staff is convenient to rapidly position the sensor and the like needing to replace the battery, and when the staff debugs the equipment on site, the state of the vibration sensor needs to be checked in real time. Chinese patent CN206695901U, published 2017, 12/1/2017, and a vibration sensor, which comprises an FPGA control module, a parameter acquisition module, a display control module, a storage module, a wireless transmission module and a power module, wherein a signal output end of the parameter acquisition module is connected with a signal input end of the FPGA control module, a signal output end of the FPGA control module is respectively connected with the storage module and the signal input end of the wireless transmission module, the FPGA control module is connected with the display control module in a two-way communication manner, and the power module is used for supplying power to each module. Although in the technical scheme, the parameter acquisition module directly outputs the acceleration signal to the FPGA control module after acquiring the signal, the signal interference is avoided. But it cannot solve the technical problems of the status of the vibration sensor viewed on site and the inconvenience of data.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problems of state checking and data inconvenience of the existing vibration sensor on site are solved. The utility model provides a take wireless vibration sensor of low-power consumption of screen display, this wireless vibration sensor installs the ink screen, can conveniently look over the vibration sensor scene and look over state and data.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a low-power consumption wireless vibration sensor with screen display comprises a shell, an upper cover, a base, a wireless communication module, a main control board, a support, a vibration sensor, an ink screen and an ink screen driving unit, wherein the shell is arranged on the base, the upper cover is detachably connected with the shell, the middle part of the upper cover is provided with a hollow part for installing the ink screen, the base, the shell, the upper cover and the ink screen form a closed cavity for accommodating other elements, the bottom of the base is provided with a threaded hole for connecting a measured object, the support is fixedly connected with the base, the bottom part of a battery is abutted against the main control board, the top of the battery is abutted against the wireless communication module, the wireless communication module is fixedly connected with the support, the wireless communication module compresses the battery and the main control board on the support, and the vibration sensor is arranged on the main control board, the probe of the vibration sensor is fixedly installed on the base through a screw to detect vibration of the base, and the wireless communication module, the vibration sensor and the ink screen driving unit are all connected with the main control board. The ink screen has the function of image keeping, and consumes very little electricity when the image is refreshed and displayed at ordinary times. The ultra-low power consumption wireless sensor is designed by utilizing the characteristic of the ink screen, the main control panel controls the power supply of the ink screen when the image needs to be refreshed, and the power of the ink screen is controlled to be cut off after the image refreshing is finished, so that the power consumption of the ink screen is reduced to be close to 0 when the image is not refreshed, and the power consumption of image display is greatly reduced. The vibration sensor can monitor the vibration condition of the measured object through the base, and can send data to the background server or communicate with the field control equipment through the wireless communication module.
Preferably, the ink screen mounting seat is further included, a plurality of mounting columns used for mounting the ink screen are processed on two sides of the upper cover, holes matched with the diameters of the mounting columns are processed on the ink screen mounting seat, threaded connecting holes are processed on the mounting columns, a plurality of screws are connected to the threaded connecting holes, and the ink screen mounting seat is fixedly connected with the upper cover through the screws. The ink screen mounting seat can facilitate the installation of an ink screen, so that the sealing performance of the closed cavity is better, and the dustproof and waterproof performance of the internal components is guaranteed.
Preferably, the battery comprises a battery box, a storage battery, a voltage stabilizing module and a battery contact pin, the storage battery is installed in the battery box and connected with the voltage stabilizing module, the battery contact pin is fixedly installed at the bottom of the storage battery, the voltage stabilizing module is connected with the battery contact pin, a conductive hole matched with the battery contact pin is processed in the main control board, and when the battery is pressed tightly against the main control board, the battery contact pin is contacted with the conductive hole. The battery contact pin can conveniently be main control board, vibration sensor and ink screen power supply.
Preferably, the wireless communication module is a Zig-Bee communication module, an 3/4/5G communication module, an NB-IoT communication module, an LoRa communication module or a DDA communication module. The wireless communication module can conveniently send the data of the vibration sensor to the background server.
Preferably, the upper part of the base is provided with an external thread, the shell is provided with an internal thread matched with the external thread, and the shell is in threaded connection with the base. The threaded connection enables a secure connection of the housing and the base.
Preferably, the wireless communication module further comprises a communication mounting seat and a fastening screw, wherein a fastening through hole matched with the fastening screw is processed in the communication mounting seat, the wireless communication module is mounted on the communication mounting seat, the fastening screw penetrates through the fastening through hole to be connected with a support, and the battery and the control board are pressed on the support by the communication mounting seat. The communication mounting seat is connected with the bracket, and the battery and the control panel are pressed on the bracket.
Preferably, rubber layers are filled between the shell and the base and between the bracket and the base. The influence of the wireless vibration sensor on the vibration of the measured object can be improved.
Preferably, the main control board is further provided with a power management module, and the power management module is connected with the battery. The power supply stability of the battery can be improved through the power supply management module, and the service life of the battery is prolonged.
The substantial effects of the invention are as follows: the wireless vibration sensor is provided with the ink screen, monitoring data and the state of the sensor can be displayed, the power consumption of the sensor can be reduced by using the ink screen, the battery is placed between the two circuit boards, and the battery is locked by the screws, so that the measurement error caused by the fact that the battery is not firmly fixed can be prevented.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment.
Wherein: 1. ink screen, 2, upper cover, 3, shell, 4, fastening screw, 5, wireless communication module, 6, battery, 7, main control board, 8, probe, 9, support, 10, base, 11, screw hole, 12, screw, 13, battery contact pin, 14, threaded connection hole.
Detailed Description
The following provides a more detailed description of the present invention, with reference to the accompanying drawings.
The first embodiment is as follows:
a low-power consumption wireless vibration sensor with screen display is disclosed, as shown in FIG. 1, the embodiment includes a housing 3, an upper cover 2, a base 10, a wireless communication module 5, a main control board 7, a support 9, a vibration sensor, an ink screen 1 and an ink screen driving unit, the housing 3 is installed on the base 10, the upper cover 2 is detachably connected with the housing 3, a hollow for installing the ink screen 1 is opened in the middle of the upper cover 2, the base 10, the housing 3, the upper cover 2 and the ink screen 1 form a closed cavity for accommodating other elements, a threaded hole 11 for connecting a measured object is processed at the bottom of the base 10, the support 9 is fixedly connected with the base 10, the bottom of the battery 6 is partially abutted against the main control board 7, the top of the battery 6 is abutted against the wireless communication module 5, the wireless communication module 5 is fixedly connected with the support 9, the wireless communication module 5 tightly presses the battery 6 and the main, the vibration sensor is installed on main control board 7, and vibration sensor's probe 8 passes through screw 12 fixed mounting on base 10, detects the vibration of base 10, and wireless communication module 5, vibration sensor and ink screen drive unit all are connected with main control board 7.
2 both sides processing of upper cover have a plurality of to be used for installing the erection column of ink screen 1, and ink screen mount pad processing has the hole that matches with the erection column diameter, and erection column processing has threaded connection hole 14, and threaded connection hole 14 is connected with a plurality of screw 12, and screw 12 is with 1 mount pad of ink screen and 2 fixed connection of upper cover.
The battery 6 includes battery case, battery, voltage stabilizing module and battery contact pin 13, and the battery is installed in the battery case, and the battery is connected with voltage stabilizing module, and battery contact pin 13 fixed mounting is in the battery bottom, and voltage stabilizing module is connected with battery contact pin 13, and main control board 7 processing has the electrically conductive hole that matches with battery contact pin 13, and when battery 6 compressed tightly main control board 7, battery contact pin 13 contacted with electrically conductive hole. The battery pin 13 can conveniently supply power to the main control board 7, the vibration sensor and the ink screen 1. Still include latch device, upper cover 2 passes through latch device and is connected with shell 3, and latch device includes spring and block tongue, and the processing of the 2 outsides of upper cover has the blind hole, and spring and block tongue embolia the blind hole, spring one end and blind hole fixed connection, block tongue and spring free end fixed connection, and shell 3 and blind hole correspond the position processing and have the through-hole, and the spring both ends all are connected with the logic output pin of control panel, and the through-hole outside is filled by rubber. When a voltage difference exists between the logic output pins of the main control board 7 connected with the two ends of the spring, the spring contracts to drive the clamping tongue to retract, so that the upper cover 2 can be separated from the shell 3. When there is no voltage difference between the logic output pins of the main control board 7 connected to the two ends of the spring, the spring recovers and drives the latch to extend forward and to be latched into the through hole, so that the upper cover 2 is fixedly connected to the housing 3. The main control board 7 receives the control signal through the wireless communication module 5.
The wireless communication module 5 is a Zig-Bee communication module, an 3/4/5G communication module, an NB-IoT communication module, an LoRa communication module or a DDA communication module. The wireless communication module 5 can conveniently send the data of the vibration sensor to the background server. The processing of base 10 upper portion has the external screw thread, and shell 3 processing has the internal thread that matches with the external screw thread, shell 3 and base 10 threaded connection. The threaded connection enables a secure connection of the housing 3 and the base 10. The communication mounting seat is provided with a fastening through hole matched with the fastening screw 4, the wireless communication module 5 is installed on the communication mounting seat, the fastening screw 4 penetrates through the fastening through hole to be connected with the support 9, and the battery 6 and the control panel are tightly pressed on the support 9 by the communication mounting seat. By attaching the communication mount to the bracket 9, the battery 6 and the control board are pressed against the bracket 9. Rubber layers are filled between the shell 3 and the base 10 and between the bracket 9 and the base 10. The influence of the wireless vibration sensor on the vibration of the measured object can be improved. The main control board 7 is also provided with a power management module, and the power management module is connected with the battery 6. The power supply stability of the battery 6 can be improved through the power supply management module, and the service life of the battery 6 is prolonged.
The substantial effect of the embodiment is as follows: the ink screen 1 has an image holding function, and consumes very little power only when an image is refreshed and displayed at ordinary times. The ultra-low power consumption wireless sensor is designed by utilizing the characteristic of the ink screen 1, the main control board 7 controls the power supply of the ink screen 1 when the image needs to be refreshed, and the power of the ink screen 1 is controlled to be cut off after the image refreshing is finished, so that the power consumption of the ink screen 1 is reduced to be close to 0 when the image is not refreshed, and the power consumption of image display is greatly reduced. The vibration sensor can monitor the vibration condition of the measured object through the base 10, and can send data to a background server or communicate with a field control device through the wireless communication module 5. The ink screen mounting seat can facilitate the installation of the ink screen 1, so that the sealing performance of the closed cavity is better, and the dustproof and waterproof performance of the internal components is guaranteed.
The above embodiment is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the technical scope of the claims.
Claims (7)
1. A low-power consumption wireless vibration sensor with screen display is characterized in that,
the device comprises a shell, an upper cover, a base, a wireless communication module, a main control board, a support, a vibration sensor, an ink screen and an ink screen driving unit, wherein the shell is arranged on the base, the upper cover is detachably connected with the shell, the middle part of the upper cover is provided with a hollow part for installing the ink screen, the base, the shell, the upper cover and the ink screen form a closed cavity for accommodating other elements, the bottom of the base is provided with a threaded hole for connecting a measured object, the support is fixedly connected with the base, the bottom part of a battery is abutted against the main control board, the top of the battery is abutted against the wireless communication module, the wireless communication module is fixedly connected with the support, the wireless communication module compresses the battery and the main control board on the support, the vibration sensor is arranged on the main control board, and a probe of the vibration sensor is fixedly arranged on the base through a screw, the vibration of the base is detected, and the wireless communication module, the vibration sensor and the ink screen driving unit are all connected with the main control board.
2. Low-power consumption wireless vibration sensor with screen display according to claim 1,
still include ink screen mount pad, upper cover both sides processing has a plurality of to be used for installing the erection column of ink screen, ink screen mount pad processing have with the hole that the erection column diameter matches, the erection column processing has threaded connection hole, threaded connection hole is connected with a plurality of screw, the screw is with ink screen mount pad and upper cover fixed connection.
3. Low-power consumption wireless vibration sensor with screen display according to claim 1,
the battery comprises a battery box, a storage battery, a voltage stabilizing module and battery contact pins, wherein the storage battery is installed in the battery box and connected with the voltage stabilizing module, the battery contact pins are fixedly installed at the bottom of the storage battery and connected with the battery contact pins, conductive holes matched with the battery contact pins are processed in the main control board, and the battery contact pins are contacted with the conductive holes when the main control board is pressed tightly.
4. Low-power consumption wireless vibration sensor with screen display according to claim 1,
the wireless communication module is a Zig-Bee communication module, an 3/4/5G communication module, an NB-IoT communication module, an LoRa communication module or a DDA communication module.
5. Low-power consumption wireless vibration sensor with screen display according to claim 1,
the base upper portion processing has the external screw thread, the shell processing have with the internal thread that the external screw thread matches, shell and base threaded connection.
6. Low-power consumption wireless vibration sensor with screen display according to claim 1,
the wireless communication module is characterized by further comprising a communication mounting seat and a fastening screw, wherein a fastening through hole matched with the fastening screw is processed in the communication mounting seat, the wireless communication module is installed on the communication mounting seat, the fastening screw penetrates through the fastening through hole and is connected with a support, and the battery and the control panel are compressed on the support by the communication mounting seat.
7. Low-power consumption wireless vibration sensor with screen display according to claim 1,
rubber layers are filled between the shell and the base and between the support and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621603.9A CN111879399A (en) | 2020-07-01 | 2020-07-01 | Low-power consumption wireless vibration sensor with screen display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621603.9A CN111879399A (en) | 2020-07-01 | 2020-07-01 | Low-power consumption wireless vibration sensor with screen display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111879399A true CN111879399A (en) | 2020-11-03 |
Family
ID=73156650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010621603.9A Pending CN111879399A (en) | 2020-07-01 | 2020-07-01 | Low-power consumption wireless vibration sensor with screen display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111879399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984193A (en) * | 2021-10-28 | 2022-01-28 | 武汉燃气热力能源服务有限公司 | Research and application of novel acceleration sensor system on pipe network |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130073228A1 (en) * | 2011-06-23 | 2013-03-21 | Virtjoule, Inc. | System Responsive to Machine Vibrations and Method of Use |
| CN103175605A (en) * | 2013-03-18 | 2013-06-26 | 中国矿业大学(北京) | Mining portable vibration signal acquisition recording system |
| CN204286585U (en) * | 2014-12-03 | 2015-04-22 | 沈阳大学 | A kind of acceleration transducer submerged structure vibration monitoring device |
| CN205845292U (en) * | 2016-06-30 | 2016-12-28 | 北京海顿中科技术有限公司 | Wireless temperature measurement vialog |
| CN107103740A (en) * | 2017-05-19 | 2017-08-29 | 重庆声光电智联电子有限公司 | A kind of wireless humiture monitoring terminal of having electronic ink screen |
| CN206505282U (en) * | 2016-10-31 | 2017-09-19 | 天津智艺通科技有限公司 | A kind of vehicle-mounted monitoring system |
| CN206695901U (en) * | 2017-04-28 | 2017-12-01 | 安徽师范大学 | A kind of vibrating sensor |
| CN208721245U (en) * | 2018-05-30 | 2019-04-09 | 上海澄科电子科技有限公司 | A kind of novel radio vibrating sensor |
| CN209131732U (en) * | 2019-01-23 | 2019-07-19 | 福建省特种设备检验研究院 | A kind of noise meter for low-frequency vibration |
| CN209214669U (en) * | 2018-12-05 | 2019-08-06 | 西人马联合测控（泉州）科技有限公司 | It is a kind of to detect Vibration Meter for monitoring slewing vibration and the wireless communication point of temperature |
| CN209372218U (en) * | 2018-12-29 | 2019-09-10 | 戴森优能(北京)新能源科技有限公司 | A kind of motor oscillating abnormal detector |
| US20190320244A1 (en) * | 2018-04-16 | 2019-10-17 | Nidec Motor Corporation | Sensor module system |
| CN210603393U (en) * | 2019-09-03 | 2020-05-22 | 苏州捷杰传感技术有限公司 | Wireless intelligent vibration temperature sensor |
| CN210665783U (en) * | 2019-09-26 | 2020-06-02 | 石家庄市长兴惠达科技有限公司 | Wireless portable vibration tachometer |
-
2020
- 2020-07-01 CN CN202010621603.9A patent/CN111879399A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130073228A1 (en) * | 2011-06-23 | 2013-03-21 | Virtjoule, Inc. | System Responsive to Machine Vibrations and Method of Use |
| CN103175605A (en) * | 2013-03-18 | 2013-06-26 | 中国矿业大学(北京) | Mining portable vibration signal acquisition recording system |
| CN204286585U (en) * | 2014-12-03 | 2015-04-22 | 沈阳大学 | A kind of acceleration transducer submerged structure vibration monitoring device |
| CN205845292U (en) * | 2016-06-30 | 2016-12-28 | 北京海顿中科技术有限公司 | Wireless temperature measurement vialog |
| CN206505282U (en) * | 2016-10-31 | 2017-09-19 | 天津智艺通科技有限公司 | A kind of vehicle-mounted monitoring system |
| CN206695901U (en) * | 2017-04-28 | 2017-12-01 | 安徽师范大学 | A kind of vibrating sensor |
| CN107103740A (en) * | 2017-05-19 | 2017-08-29 | 重庆声光电智联电子有限公司 | A kind of wireless humiture monitoring terminal of having electronic ink screen |
| US20190320244A1 (en) * | 2018-04-16 | 2019-10-17 | Nidec Motor Corporation | Sensor module system |
| CN208721245U (en) * | 2018-05-30 | 2019-04-09 | 上海澄科电子科技有限公司 | A kind of novel radio vibrating sensor |
| CN209214669U (en) * | 2018-12-05 | 2019-08-06 | 西人马联合测控（泉州）科技有限公司 | It is a kind of to detect Vibration Meter for monitoring slewing vibration and the wireless communication point of temperature |
| CN209372218U (en) * | 2018-12-29 | 2019-09-10 | 戴森优能(北京)新能源科技有限公司 | A kind of motor oscillating abnormal detector |
| CN209131732U (en) * | 2019-01-23 | 2019-07-19 | 福建省特种设备检验研究院 | A kind of noise meter for low-frequency vibration |
| CN210603393U (en) * | 2019-09-03 | 2020-05-22 | 苏州捷杰传感技术有限公司 | Wireless intelligent vibration temperature sensor |
| CN210665783U (en) * | 2019-09-26 | 2020-06-02 | 石家庄市长兴惠达科技有限公司 | Wireless portable vibration tachometer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984193A (en) * | 2021-10-28 | 2022-01-28 | 武汉燃气热力能源服务有限公司 | Research and application of novel acceleration sensor system on pipe network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5102225B2 (en) | Manual process transmitter | |
| CN111879399A (en) | Low-power consumption wireless vibration sensor with screen display | |
| CN209927396U (en) | Wireless excitation monitoring sensing device | |
| CN110850339A (en) | Power transformer detection system | |
| CN215491842U (en) | Transformer state monitoring system | |
| CN201118853Y (en) | A device for providing video monitoring device with uninterrupted power | |
| CN214893442U (en) | Railway sound insulation barrier state detection device and system | |
| CN205317405U (en) | Vacuum transmitter | |
| CN206292367U (en) | A kind of breaker monitors sensor on-line | |
| TWI726408B (en) | Hybrid modular wireless sensor | |
| CN210155204U (en) | Non-contact current monitoring device | |
| CN207649801U (en) | A kind of battery type digital display manometer | |
| CN207895283U (en) | Travel-type multi parameter intallingent environment vasculum | |
| KR200382091Y1 (en) | Electronic Watt-hour Meter with Attachable and Detachable Communication module | |
| CN219320067U (en) | Leakage monitoring type digital controller | |
| CN205664214U (en) | Digital display pilot lamp | |
| CN219956589U (en) | Environment wireless data acquisition device | |
| CN217384545U (en) | Low-power-consumption digital pressure transmitter | |
| CN216309080U (en) | Screen display type temperature and humidity sensor | |
| CN213842226U (en) | Power equipment running state monitoring device | |
| CN211330085U (en) | Automatic monitoring and alarming device for deformation of gluing part | |
| CN107991000A (en) | A kind of power transformer pasta thermometer | |
| CN214376627U (en) | Electric appliance running state recording device | |
| CN220019828U (en) | UPS power supply current abnormality detection alarm system | |
| CN218601702U (en) | Multifunctional household mobile monitoring system and control circuit |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201103 |
|
| RJ01 | Rejection of invention patent application after publication |