CN219624863U - Portable detection tool for temperature and pressure sensor for intelligent gas meter - Google Patents

Portable detection tool for temperature and pressure sensor for intelligent gas meter Download PDF

Info

Publication number
CN219624863U
CN219624863U CN202320352854.0U CN202320352854U CN219624863U CN 219624863 U CN219624863 U CN 219624863U CN 202320352854 U CN202320352854 U CN 202320352854U CN 219624863 U CN219624863 U CN 219624863U
Authority
CN
China
Prior art keywords
circuit
shell
detection
temperature
output end
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
Application number
CN202320352854.0U
Other languages
Chinese (zh)
Inventor
刘仁河
范玉成
余志明
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.)
Fato Gas Equipment (hebei) Ltd
Original Assignee
Fato Gas Equipment (hebei) Ltd
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 Fato Gas Equipment (hebei) Ltd filed Critical Fato Gas Equipment (hebei) Ltd
Priority to CN202320352854.0U priority Critical patent/CN219624863U/en
Application granted granted Critical
Publication of CN219624863U publication Critical patent/CN219624863U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Measuring Fluid Pressure (AREA)

Abstract

The utility model discloses a portable detection tool for a temperature and pressure sensor for an intelligent gas meter, which comprises a handheld shell, wherein a PCB (printed circuit board) is arranged in the shell, a through hole is formed in the top end of the shell, and a tested sensor interface is arranged on the PCB extending out of the top end of the shell; the PCB is provided with a detection module; the back of the shell is provided with a battery mounting opening, and the back of the shell of the battery mounting opening is provided with a battery cover; the front end face of the shell is provided with a display, an alarm indicator lamp and a key set, the output end of the key set is connected with the input end of the detection module, and the output end of the detection module is connected with the controlled ends of the display and the alarm indicator lamp respectively. The utility model is used for detecting all temperature/temperature pressure sensors used for intelligent gas meter production, all the interfaces are led out, and the detection can be carried out only by connecting the sensors to be detected to the interfaces at the top of the tool in a one-to-one correspondence manner during detection, so that the detection efficiency is improved.

Description

Portable detection tool for temperature and pressure sensor for intelligent gas meter
Technical Field
The utility model relates to the technical field of gas meter detection, in particular to a tool for detecting a temperature and pressure sensor for a gas meter.
Background
The production process of the intelligent gas meter directly relates to the quality of products and the life cycle of markets, and a gas meter manufacturer has very important significance for reducing cost and enhancing efficiency of enterprises and being environment-friendly for quality control of all parts in the intelligent gas meter. All manufacturers in the present stage control the quality of externally supplied products according to the requirements of a quality management system, and have sampling detection measures on conventional materials. However, because the intelligent gas meter uses the temperature and/or pressure compensation function, the core material is a temperature and/or pressure sensor, and the sensor needs to be secondarily packaged by a manufacturer based on risk control factors, the gas meter manufacturer must perform quality control on the secondarily packaged sensor material to ensure the safety and stability of the whole life cycle of the intelligent gas meter.
At present, the device for detecting the temperature and pressure sensor for the gas meter is large in size and mass, cannot move and is inconvenient to detect and use.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a tool for detecting a temperature and pressure sensor for an intelligent gas meter, which is convenient to hold and improves the detection efficiency.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.
A portable detection tool of a temperature and pressure sensor for an intelligent gas meter comprises a handheld shell, wherein a PCB is arranged in the shell, a through hole for the PCB to extend out is formed in the top end of the shell, and a tested sensor interface is arranged on the PCB extending out of the top end of the shell; the PCB is provided with a detection module for detecting the detected sensor and judging whether the detected sensor is qualified or not; the back of the shell is provided with a battery mounting opening, and the back of the shell of the battery mounting opening is provided with a battery cover; the front end face of the shell is provided with a display, an alarm indicator lamp and a key set, the output end of the key set is connected with the input end of the detection module, and the output end of the detection module is connected with the controlled ends of the display and the alarm indicator lamp respectively.
The portable detection tool for the temperature and pressure sensor for the intelligent gas meter comprises an MCU, a power supply conversion circuit, an alarm driving circuit, a display driving circuit, a standard sensor interface circuit, a detection circuit, a key unit and a detected sensor interface circuit; the input end of the power supply conversion circuit is connected with the battery, and the output end of the power supply conversion circuit is connected with the power supply end of the MCU; the input end of the MCU is respectively connected with the output ends of the standard sensor interface circuit, the key unit and the detection circuit, the output end of the MCU is respectively connected with the controlled ends of the alarm driving circuit and the display driving circuit, the output end of the alarm driving circuit is connected with the alarm indicator lamp, and the output end of the display driving circuit is connected with the display; the input end of the detection circuit is connected with the output end of the tested sensor interface circuit, and the tested sensor interface is arranged in the tested sensor interface circuit.
Above-mentioned portable detection frock of temperature and pressure sensor for intelligent gas table, the button group is including setting for the button, confirm button and switch button.
Above-mentioned portable detection frock of temperature and pressure sensor for intelligent gas table, still be provided with the communication module who is connected with MCU output on the PCB circuit board.
Above-mentioned portable detection frock of temperature and pressure sensor for intelligent gas table, still be provided with the preset interface of access other sensors in the sensor interface circuit that is surveyed.
By adopting the technical scheme, the utility model has the following technical progress.
The utility model is used for detecting all temperature/temperature pressure sensors used for intelligent gas meter production, all the interfaces are led out, and the detection can be carried out only by connecting the sensors to be detected to the interfaces at the top of the tool in a one-to-one correspondence manner during detection, so that the utility model is very convenient; because the built-in battery is adopted for power supply, the problem that the detection site wiring is messy caused by power supply of the switching power supply is avoided, the portable type power supply is convenient to carry, and the detection efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the back structure of the present utility model;
FIG. 3 is an electrical schematic diagram of the present utility model;
FIG. 4 is a circuit diagram of a power conversion circuit according to the present utility model;
FIG. 5 is a circuit diagram of the detection circuit according to the present utility model;
FIG. 6 is a circuit diagram of a standard sensor interface circuit according to the present utility model;
FIG. 7 is a circuit diagram of an alarm driving circuit according to the present utility model;
FIG. 8 is a circuit diagram of a key unit according to the present utility model;
FIG. 9 is a circuit diagram of a sensor interface circuit under test according to the present utility model;
FIG. 10 is a circuit diagram of a communication module according to the present utility model;
FIG. 11 is a circuit diagram of an MCU according to the present utility model;
fig. 12 is a circuit diagram of a display driving circuit according to the present utility model.
Wherein: 1. the display, the alarm indicator, the setting key, the determining key, the switching key, the PCB, the preset interface and the battery cover are respectively arranged on the display, the alarm indicator and the setting key.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
The utility model provides a portable detection frock of temperature and pressure sensor for intelligent gas table, its structure is as shown in fig. 1-2, including handheld casing, be provided with PCB circuit board 6 in the casing, the top of casing is offered and is supplied the mouth that passes that the PCB circuit board stretches out, is provided with the sensor interface that is surveyed on the PCB circuit board 6 that stretches out the casing top; the PCB is provided with a detection module which is used for detecting the detected sensor and judging whether the detected sensor is qualified or not; the back of the shell is provided with a battery mounting opening, and the back of the shell of the battery mounting opening is provided with a battery cover 8; the front end face of the shell is provided with a display 1, an alarm indicator lamp 2 and a key set, the output end of the key set is connected with the input end of the detection module, and the output end of the detection module is respectively connected with the controlled ends of the display 1 and the alarm indicator lamp 2.
The detection module comprises an MCU, a power supply conversion circuit, an alarm driving circuit, a display driving circuit, a standard sensor interface circuit, a detection circuit, a key unit and a tested sensor interface circuit, wherein the alarm driving circuit and an alarm indicator lamp form an alarm module, and the display driving circuit and a display form a display module. The electrical connection relationship between the modules is shown in fig. 3, specifically: the input end of the MCU is respectively connected with the output ends of the standard sensor interface circuit, the key unit and the detection circuit, the output end of the MCU is respectively connected with the controlled ends of the alarm driving circuit and the display driving circuit, the output end of the alarm driving circuit is connected with the alarm indicator lamp, and the output end of the display driving circuit is connected with the display; the input end of the detection circuit is connected with the output end of the tested sensor interface circuit, and the tested sensor interface is arranged in the tested sensor interface circuit.
The input end of the power supply conversion circuit is connected with the battery, and the output end of the power supply conversion circuit is connected with the power supply end of the MCU; the power conversion circuit is used for converting the battery voltage into the working voltage required by other modules. In this embodiment, the power conversion circuit converts the battery voltage to 3.3V voltage as shown in fig. 4.
The key set includes a setting key 4, a determination key 5, and a switch key 6, and a circuit diagram of the key unit is shown in fig. 8. Wherein the switch key is used for starting the detection tool to work, which is not shown in fig. 8; the setting button is used for selecting the model of the detected sensor and sending a WEUP1 signal to the MCU; the confirm button is used for confirming information and sending a WEUP2 signal to the MCU.
The standard sensor circuit is used for accessing the standard sensor and sending standard signals 12C1SCL1 and 12C1SDA1 detected by the standard sensor to the MCU; in this embodiment, the circuit of the standard sensor circuit is as shown in fig. 6.
The tested sensor interface circuit is used for accessing the tested sensor and sending detection signals 12C1SCL2 and 12C1SDA2 to the detection circuit; in this embodiment, a circuit diagram of the interface circuit of the sensor to be tested is shown in fig. 9.
The detection circuit is used for processing the acquired signals and then sending the processed signals to the MCU; in this embodiment, as shown in fig. 5, the core chip is TCA9546APWR.
The MCU is used for comparing the acquired standard signal with the detection signal, judging whether the difference value is within an error range, and judging that the detected sensor is qualified if the difference value is within the error range; and if the error range is exceeded, an alarm signal is sent out. In this embodiment, the circuit of the MCU is shown in fig. 11.
The alarm driving circuit is used for driving the alarm indicator lamp to light, in this embodiment, a circuit diagram of the alarm driving circuit is shown in fig. 7, and the frequency of the alarm signal lamp flashing is controlled according to the MOTOCT signal sent by the MCU.
The display driving circuit is used for driving the display to display. In this embodiment, as shown in fig. 12, the circuit diagram of the display driving circuit controls the display to display the measurement results 12C1SCL0 and 12C1SDA0 according to the LCD1 signal sent by the MCU.
In the utility model, the PCB is also provided with a communication module connected with the output end of the MCU, and the communication module is used for uploading the sensor data to the MES system. In actual operation, the MES data transfer module is connected with a workshop Ethernet (more than five types of network cables) and is connected with a transfer module power supply, the transfer module XH-2A connector is connected with the tool, the data uploading environment can be built, and after the sensor detection is completed, the data is automatically uploaded. In this embodiment, as shown in fig. 10, the circuit diagram of the communication module receives USART2RX and USART2TX signals sent by the MCU and then transmits the signals through the data line.
The interface circuit of the tested sensor is also provided with a preset interface 7 connected with other sensors, so that the other sensors can be conveniently detected. For example, the common sensor interface type FPC interface, XH terminal interface and the like can be preset at the place so as to be convenient and compatible with the materials for enterprise production, and along with the development of technology, after the new interface requirement occurs, only the PCB at the place needs to be modified.
The utility model is used for detecting the voltage stabilizing sensor, and the specific detection flow is as follows.
Firstly, measuring data by using a standard sensor, then measuring the measured temperature and pressure sensor, comparing the measured temperature and pressure sensor data, and adopting an error control mode:
E＝D t -D b
wherein E is a calculation error and is also key data for judging whether materials are qualified or not, the numerical value can be used for setting the tool through a setting mode, and the set value is E b So long as E.ltoreq.E is satisfied b And judging whether the test is qualified or not, if not, judging whether the test is unqualified, and carrying out alarm indication.
D t Is the actual value of the detected sensor; to ensure fairness of the test results, the value is an average of 3 measurements. D (D) b Actual values for the standard sensors detected; to ensure fairness of the test results, the value is an average of 3 measurements.
The calculation formula of the average value is: d= (D) 1 +D 2 +D 3 )/3。
The utility model is used for detecting all temperature/temperature pressure sensors used for the production of the intelligent gas meter, and all the interfaces are led out according to the presentation mode of the sensors, and the detection can be carried out only by connecting the sensors to be detected to the interfaces at the top of the tool in a one-to-one correspondence manner during the detection; the utility model is equipped with standard sensors for comparing the detected data and giving an alarm when the detected data error exceeds a set value.

Claims (5)

1. Temperature and pressure sensor portable detection frock for intelligent gas table, its characterized in that: the portable electronic device comprises a handheld shell, wherein a PCB (printed circuit board) is arranged in the shell, a penetrating opening for the PCB to extend out is formed in the top end of the shell, and a tested sensor interface is arranged on the PCB (6) extending out of the top end of the shell; the PCB is provided with a detection module for detecting the detected sensor and judging whether the detected sensor is qualified or not; the back of the shell is provided with a battery mounting opening, and the back of the shell of the battery mounting opening is provided with a battery cover (8); the front end face of the shell is provided with a display (1), an alarm indicator lamp (2) and a key set, the output end of the key set is connected with the input end of the detection module, and the output end of the detection module is connected with the controlled ends of the display (1) and the alarm indicator lamp (2) respectively.
2. The portable detection tool for the temperature and pressure sensor for the intelligent gas meter, which is characterized in that: the detection module comprises an MCU, a power supply conversion circuit, an alarm driving circuit, a display driving circuit, a standard sensor interface circuit, a detection circuit, a key unit and a tested sensor interface circuit, wherein the input end of the power supply conversion circuit is connected with a battery, and the output end of the power supply conversion circuit is connected with the power supply end of the MCU; the input end of the MCU is respectively connected with the output ends of the standard sensor interface circuit, the key unit and the detection circuit, the output end of the MCU is respectively connected with the controlled ends of the alarm driving circuit and the display driving circuit, the output end of the alarm driving circuit is connected with the alarm indicator lamp, and the output end of the display driving circuit is connected with the display; the input end of the detection circuit is connected with the output end of the tested sensor interface circuit, and the tested sensor interface is arranged in the tested sensor interface circuit.
3. The portable detection tool for the temperature and pressure sensor for the intelligent gas meter according to claim 2, wherein the portable detection tool is characterized in that: the key set comprises a setting key (3), a determining key (4) and a switch key (5).
4. The portable detection tool for the temperature and pressure sensor for the intelligent gas meter according to claim 2, wherein the portable detection tool is characterized in that: and the PCB is also provided with a communication module connected with the MCU output end.
5. The portable detection tool for the temperature and pressure sensor for the intelligent gas meter according to claim 2, wherein the portable detection tool is characterized in that: the interface circuit of the tested sensor is also provided with a preset interface (7) for accessing other sensors.
CN202320352854.0U 2023-03-01 2023-03-01 Portable detection tool for temperature and pressure sensor for intelligent gas meter Active CN219624863U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320352854.0U CN219624863U (en) 2023-03-01 2023-03-01 Portable detection tool for temperature and pressure sensor for intelligent gas meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320352854.0U CN219624863U (en) 2023-03-01 2023-03-01 Portable detection tool for temperature and pressure sensor for intelligent gas meter

Publications (1)

Publication Number Publication Date
CN219624863U true CN219624863U (en) 2023-09-01

Family

ID=87768550

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320352854.0U Active CN219624863U (en) 2023-03-01 2023-03-01 Portable detection tool for temperature and pressure sensor for intelligent gas meter

Country Status (1)

Country Link
CN (1) CN219624863U (en)

Similar Documents

Publication Publication Date Title
CN200941076Y (en) Intelligent pressure, temp displaying control meter
CN103481120A (en) Intelligent detection system for Duty parameters of machine tool
CN111157876A (en) System and method for testing PCBA (printed circuit board assembly) with luminous LED (light-emitting diode)
CN219624863U (en) Portable detection tool for temperature and pressure sensor for intelligent gas meter
CN207318002U (en) A kind of automation calibration of pressure sensor and test equipment
CN109238557A (en) A kind of intelligent self-diagnosing formula pressure transmitter device
CN211718384U (en) Loop resistance tester
CN109900427B (en) Automatic calibration system and calibration method for electric measurement type pressure gauge
CN217687601U (en) MCU temperature sensor ATE equipment
CN211452697U (en) Wireless torque detection module
CN208887835U (en) A kind of intelligent self-diagnosing formula pressure transmitter device
CN211457129U (en) Portable electric power communication channel test terminal
CN213748896U (en) Sensor test calibration system
CN112903035A (en) On-line testing device for transmission line monitoring equipment sensor
CN112901546A (en) Indirect measuring method and device for performance of electric control silicone oil fan
CN218512842U (en) Tightening machine shaft control box test instrument
CN210981634U (en) Wireless standard dynamometer device based on machine vision
CN216411398U (en) Vehicle quiescent current detection device
CN211786058U (en) Batch detection tool for current sensors
CN212320848U (en) Multifunctional material level instrument detection system
CN215550986U (en) 3D printer consumptive material surplus detection device
CN205300651U (en) Signal conversion MODULE CASE
CN215726107U (en) Temperature and humidity monitoring device for infant incubator body
CN217358607U (en) Wireless system for detecting temperature and humidity of marine electromagnetic cabinet
CN214502765U (en) Hand-held torque analyzer

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant