CN110995369A - Automatic detection device of wireless transmission control unit - Google Patents
Automatic detection device of wireless transmission control unit Download PDFInfo
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- CN110995369A CN110995369A CN201911382535.9A CN201911382535A CN110995369A CN 110995369 A CN110995369 A CN 110995369A CN 201911382535 A CN201911382535 A CN 201911382535A CN 110995369 A CN110995369 A CN 110995369A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention relates to the technical field of intelligent gas meters, in particular to an automatic detection device of a wireless transmission control unit, which comprises an automatic detection tool host and a needle bed; the needle bed is used for installing and fixing the wireless transmission control unit and enabling the wireless transmission control unit to be electrically connected with the automatic detection tool host; the automatic detection tool host comprises the following modules: an initialization module: the automatic detection tool host is used for initializing the wireless transmission control unit after supplying power to the wireless transmission control unit through the needle bed; an automatic detection module: the automatic detection module is used for entering an automatic detection mode after initialization is finished; the communication test module: and the wireless communication control unit is used for modulating the default channel and sending a channel instruction to the wireless transmission control unit after the automatic detection mode is finished, so that the wireless transmission control unit is switched to the default channel and carries out wireless communication test. The invention solves the problem of low working efficiency of the traditional detection method.
Description
Technical Field
The invention relates to the technical field of intelligent gas meters, in particular to an automatic detection device of a wireless transmission control unit.
Background
In order to facilitate management of a gas company and avoid meter reading at home, a Wireless Transmission Control Unit (WTCU) is generally provided in an existing gas meter to upload data information of the gas meter. The wireless transmission control unit produced by a factory generally needs to be subjected to quality detection, and the wireless transmission module can smoothly upload data information of the gas meter to a gas company.
At present, for a function detection tool of a wireless transmission control unit, the existing equipment generally adopts manual testing, each function test needs manual triggering, and the working efficiency is low. Meanwhile, when the tools detect wireless signals, Wireless Transmission Control Units (WTCUs) can interfere with each other due to the fact that a plurality of detection tools carry out wireless communication on the same frequency point, a common processing method is to purchase a darkroom shielding box to shield interference among the darkroom shielding boxes, and the darkroom shielding boxes are expensive in price. The other scheme is that Wireless Transmission Control Units (WTCUs) are arranged on different frequency points to carry out wireless communication, mutual interference cannot be caused, but the arrangement and debugging are inconvenient, mass production and assembly are not facilitated, and low working efficiency is easily caused.
Disclosure of Invention
The invention mainly aims to provide an automatic detection device of a wireless transmission control unit, which solves the problem of low working efficiency of the traditional detection method.
In order to achieve the aim, the invention provides an automatic detection device of a wireless transmission control unit, which comprises an automatic detection tool host and a needle bed;
the needle bed is used for installing and fixing the wireless transmission control unit and enabling the wireless transmission control unit to be electrically connected with the automatic detection tool host;
the automatic detection tool host comprises the following modules:
an initialization module: the automatic detection tool host is used for initializing the wireless transmission control unit after supplying power to the wireless transmission control unit through the needle bed;
an automatic detection module: after initialization is completed, the wireless transmission control unit sends a request for entering an automatic detection mode to the automatic detection tool host through a UART port of the wireless transmission control unit, and if the request passes, the wireless transmission control unit enters the automatic detection mode; the automatic detection mode is used for detecting and analyzing functional parameters of the wireless transmission control unit;
the communication test module: and the wireless communication control unit is used for modulating the default channel and sending a channel instruction to the wireless transmission control unit after the automatic detection mode is finished, so that the wireless transmission control unit is switched to the default channel and carries out wireless communication test.
The working principle and the advantages of the invention are as follows:
1. the arrangement of the needle bed and the needle bed pressing plate can fix the original wireless transmission control unit, and meanwhile, a stable power supply is provided for the wireless transmission control unit, so that damage caused by poor contact during detection is avoided.
2. The automatic detection tool host machine is arranged, when a wireless transmission control unit is tested, only the wireless transmission control unit is required to be installed on a needle bed, the automatic detection module and the communication test module can automatically trigger and detect the functional parameters and the most main communication function of the wireless transmission control unit, the detection efficiency is improved by replacing manual trigger detection through automatic trigger detection, and a communication channel is arranged between the automatic detection tool host machine and the wireless transmission control unit (WCU), so that when a plurality of wireless transmission control units (WCU) work on a plurality of automatic detection tool host machines, the wireless transmission control units can be on different channels, and the mutual influence is avoided.
The automatic detection device further comprises a code scanning gun, wherein the code scanning gun is electrically connected with the automatic detection tool host and is used for scanning and acquiring a unique production serial number pasted on the wireless transmission control unit; the automatic detection tool host further comprises a serial number detection module used for judging the communication mode of the wireless transmission control unit according to the serial number.
The communication mode of distinguishing the wireless transmission control unit by the code scanning detection mode is simple, effective and practical.
Further, the communication means includes LoRa and NB-IoT.
The LoRa and the NB are both low-power-consumption wide-area Internet of things technologies, are two current mainstream technical genres, and are wide in application range.
Further, be provided with the needle bed clamp plate on the needle bed, automated inspection frock host computer still includes:
a needle bed pressing plate detection module: and the feeder is used for analyzing and judging the pressing or lifting of the needle bed pressing plate according to the feeder in the needle bed.
Whether the wireless transmission control unit on the needle bed is installed and fixed is conveniently judged.
Further, carry out the function detection to wireless transmission control unit by automated inspection frock host computer in the automated inspection mode, the automated inspection frock host computer still includes:
the function detection module: detecting and analyzing the functional parameters of the wireless transmission control unit; the detection and analysis of the functional parameters comprise key detection, valve opening detection, pulse counting detection, voltage acquisition detection and strong magnetic interference detection.
Through the detection and analysis of the functional parameters of the wireless transmission control unit, whether the quality of the wireless transmission control unit is qualified or not is judged conveniently.
Further, the automatic detection tool host further comprises a 4-line valve and a button for controlling the opening and closing of the 4-line valve, the 4-line valve comprises a simulation valve, a positive electrode, a negative electrode, a first feedback line and a second feedback line, and the positive electrode, the negative electrode, the first feedback line and the second feedback line are respectively and independently electrically connected with the simulation valve and the automatic detection tool host; when the automatic detection tool host applies forward voltage to the positive electrode of the 4-wire valve, the simulation valve is opened, and after the simulation valve is opened, the first feedback line and the second feedback line are conducted; when the automatic detection tool host applies forward voltage to the negative electrode of the 4-wire valve, the simulation valve is closed, and after the simulation valve is closed, the first feedback line and the second feedback line are disconnected;
the function detection module comprises a function detection module and a function detection module,
the button detection submodule comprises: the button is pressed, and whether the button is normal or not is judged according to the conduction between the first feedback line and the second feedback line;
4 line valve detection submodule: the control circuit is used for pressing the button to open or close the 4-wire valve and judging whether the 4-wire valve is normal or not according to the conduction between the first feedback line and the second feedback line.
In the embodiment, the 4-wire valve is a simulation valve which is electrically connected with the automatic detection tool host through a connector and is used for simulating the opening and closing of the valve when the gas meter is normally used; the real application scene is simulated through the simulation valve, so that whether the wireless transmission control unit can be actually used or not is conveniently detected.
Further, the function detection module further comprises:
and the pulse counting and detecting submodule is used for sending a plurality of pulses to the number deducting part of the wireless transmission control unit, receiving the pulse quantity fed back to the automatic detection tool host by the wireless transmission control unit through the UART port, and comparing, analyzing and detecting the fed-back pulse quantity by the sent pulse quantity.
Whether the pulse number of the wireless transmission control unit is normal or not is conveniently detected and judged.
Further, the function detection module further comprises:
and the acquisition voltage detection submodule is used for acquiring the voltage value of the wireless transmission control unit, receiving the voltage value fed back by the wireless transmission control unit through the UART port and comparing, analyzing and detecting the acquired voltage value with the fed back voltage value.
Whether the voltage value of the wireless transmission control unit is normal or not is conveniently detected and judged.
Further, the function detection module further comprises:
strong magnetic interference detection submodule: and sending a low level for several seconds to the wireless transmission control unit deduction part, simulating strong magnetic interference, and detecting the strong magnetic interference.
Whether the strong magnetic interference resistance of the wireless transmission control unit is normal or not is convenient to detect and judge.
Further, automated inspection frock host computer still includes:
a detection recording module: the automatic detection tool host is used for storing the detection result in a fixed format;
a record clearing module: the wireless communication control unit is used for clearing channel information of the wireless communication test of the wireless transmission control unit after the test is finished, and connecting the wireless transmission control unit to enter a default channel after the next wireless transmission control unit is electrified;
a record sending module: the automatic detection tool host is used for collecting and storing detection result data and transmitting the detection result data to the server after a designated command bar code is scanned through the code scanning gun.
The detection data are stored to facilitate later retrieval and checking.
Drawings
FIG. 1 is a logic diagram of an automatic detection device of a wireless transmission control unit according to the present invention;
FIG. 2 is a logic control block diagram of a 4-wire valve;
fig. 3 is a logic control block diagram of the automatic detection tool host.
Detailed Description
The following is further detailed by way of specific embodiments:
the embodiment is basically as shown in the attached figure 1:
an automatic detection device of a wireless transmission control unit comprises an automatic detection tool host, a power adapter, a code scanning gun, a needle bed and a 4-line valve;
the power adapter is electrically connected with the automatic detection tool host and used for supplying power to the automatic detection tool host.
The needle bed is arranged on the automatic detection tool host and used for installing and fixing the wireless transmission control unit and enabling the wireless transmission control unit to be electrically connected with the automatic detection tool host; and a needle bed pressing plate is arranged on the needle bed and used for further installing and fixing the wireless transmission control unit.
The code scanning gun is electrically connected with the automatic detection tool host and is used for scanning and acquiring a unique production serial number pasted on the wireless transmission control unit after the wireless transmission control unit is fixedly arranged on the needle bed;
the 4-line valve is electrically connected with the automatic detection tool host, and the automatic detection tool host further comprises a button for controlling the opening and closing of the 4-line valve.
As shown in fig. 2, the 4-wire valve includes a simulation valve, a positive electrode, a negative electrode, a first feedback line and a second feedback line, and the positive electrode, the negative electrode, the first feedback line and the second feedback line are respectively and independently electrically connected with the simulation valve and the automatic detection tool host; when the automatic detection tool host applies forward voltage to the positive electrode of the 4-wire valve, the simulation valve is opened, and after the simulation valve is opened, the first feedback line and the second feedback line are conducted; when the automatic detection tool host applies forward voltage to the negative electrode of the 4-wire valve, the simulation valve is closed, and after the simulation valve is closed, the first feedback line and the second feedback line are disconnected;
as shown in fig. 3, the automatic detection tool host comprises the following modules:
a needle bed pressing plate detection module: and the feeder is used for analyzing and judging the pressing or lifting of the needle bed pressing plate according to the feeder in the needle bed.
A serial number detection module: and is used for judging the communication mode of the wireless transmission control unit according to the serial number. The communication modes comprise LoRa and NB-IoT.
An initialization module: the automatic detection tool host is used for initializing the wireless transmission control unit after supplying power to the wireless transmission control unit through the needle bed;
an automatic detection module: after initialization is completed, the wireless transmission control unit sends a request for entering an automatic detection mode to the automatic detection tool host through the UART port of the wireless transmission control unit, and if the request does not pass or a reply is not received within a specified time, the wireless transmission control unit enters a normal working mode; the normal working mode comprises gas meter gas consumption counting detection, wireless data transmission detection and abnormity detection. If the request passes, entering an automatic detection mode; the automatic detection mode is used for detecting and analyzing functional parameters of the wireless transmission control unit.
The function detection module: the wireless transmission control unit is used for detecting and analyzing functional parameters of the wireless transmission control unit; the functional parameters comprise button detection, 4-wire valve detection, voltage parameters, pulse parameters and strong magnetic interference parameters.
The function detection module specifically comprises the following sub-modules:
the button detection submodule comprises: the button is pressed, and whether the button is normal or not is judged according to the conduction between the first feedback line and the second feedback line;
4 line valve detection submodule: the control circuit is used for pressing the button to open or close the 4-wire valve and judging whether the 4-wire valve is normal or not according to the conduction between the first feedback line and the second feedback line.
And the pulse counting detection submodule is used for sending a plurality of pulses to the wireless transmission control unit, enabling a number deducting part (counting part) of the wireless transmission control unit to count the received plurality of pulses, receiving the pulse quantity fed back to the automatic detection tool host by the wireless transmission control unit through the UART port, and comparing, analyzing and detecting the sent pulse quantity to the fed-back pulse quantity. The deduction part (counting part) of the wireless transmission control unit refers to a counting part for counting in the intelligent gas meter.
And the acquisition voltage detection submodule is used for acquiring the voltage value of the wireless transmission control unit, receiving the voltage value fed back by the wireless transmission control unit through the UART port and comparing, analyzing and detecting the acquired voltage value with the fed back voltage value.
Strong magnetic interference detection submodule: and simultaneously sending low level for several seconds to two deduction parts (counting parts) of the wireless transmission control unit, simulating strong magnetic interference, and detecting the strong magnetic interference. The strong magnetic interference detection means detecting whether the strong magnetic interference simulated by the low level will interfere the counting function of the deduction part and influence the counting.
The communication test module: and the wireless communication control unit is used for modulating the default channel and sending a channel instruction to the wireless transmission control unit after the detection of the function detection module is finished, so that the wireless transmission control unit is switched to the channel and carries out wireless communication test.
A detection recording module: the automatic detection tool host is used for storing the detection results of the function detection module and the communication test module in a fixed format;
a record clearing module: the wireless transmission control unit is used for clearing channel information of the wireless communication test of the wireless transmission control unit after the test is finished, and connecting the next wireless transmission control unit to enter a default channel after the next wireless transmission control unit is electrified;
a record sending module: the automatic detection tool host is used for collecting and storing detection result data and transmitting the detection result data to the server after a designated command bar code is scanned through the code scanning gun.
The specific implementation process is as follows:
the automatic detection tool host can automatically complete related functional parameters in the function detection process of the wireless transmission control unit, and meanwhile, according to the communication channel arranged between the automatic detection tool host and the wireless transmission control unit, a plurality of automatic detection tool hosts work on different channels and do not influence each other. Because the communication channel information that wireless transmission control unit set up is not taken notes, only carry out the record to the testing result, can not influence production assembly, provide convenience for subsequent data is looked up simultaneously, guarantee automated inspection's validity.
A wireless transmission control unit is tested by a traditional manual detection tool, each function test needs manual triggering, about 2 to 3 minutes is needed, and only one manual detection tool can be operated by one person. After this scheme adopted automated inspection frock host computer, the work of detection personnel only need install wireless transmission control unit on the needle bed can, then automated inspection frock host computer carries out needle bed clamp plate in proper order and detects, 4 line valve detects, pulse count detection module, gathers voltage detection and strong magnetic interference detection to and the most main communication test. In the communication test, each automatic detection tool host can modulate a default channel, so that the default channels of a plurality of modulated automatic detection tool hosts are different, and the mutual interference of Wireless Transmission Control Units (WTCUs) is avoided.
Each function test of a wireless transmission control unit can be realized by an automatic detection tool host, and about 40 seconds are required after the test. And one person can operate two automated inspection frock host computers simultaneously and detect, improved detection efficiency greatly.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Automatic checkout device of wireless transmission control unit, its characterized in that: the automatic detection tool comprises an automatic detection tool host and a needle bed;
the needle bed is used for installing and fixing the wireless transmission control unit and enabling the wireless transmission control unit to be electrically connected with the automatic detection tool host;
the automatic detection tool host comprises the following modules:
an initialization module: the automatic detection tool host is used for initializing the wireless transmission control unit after supplying power to the wireless transmission control unit through the needle bed;
an automatic detection module: after initialization is completed, the wireless transmission control unit sends a request for entering an automatic detection mode to the automatic detection tool host through a UART port of the wireless transmission control unit, and if the request passes, the wireless transmission control unit enters the automatic detection mode; the automatic detection mode is used for detecting and analyzing functional parameters of the wireless transmission control unit;
the communication test module: and the wireless communication control unit is used for modulating the default channel and sending a channel instruction to the wireless transmission control unit after the automatic detection mode is finished, so that the wireless transmission control unit is switched to the default channel and carries out wireless communication test.
2. The automatic detection device of a wireless transmission control unit according to claim 1, characterized in that: the automatic detection device also comprises a code scanning gun which is electrically connected with the automatic detection tool host and used for scanning and acquiring the unique production serial number pasted on the wireless transmission control unit; the automatic detection tool host further comprises a serial number detection module used for judging the communication mode of the wireless transmission control unit according to the serial number.
3. The automatic detection device of a wireless transmission control unit according to claim 2, characterized in that: the communication mode comprises LoRa and NB-IoT.
4. The automatic detection device of a wireless transmission control unit according to claim 1, characterized in that: be provided with the needle bed clamp plate on the needle bed, automated inspection frock host computer still includes:
a needle bed pressing plate detection module: and the feeder is used for analyzing and judging the pressing or lifting of the needle bed pressing plate according to the feeder in the needle bed.
5. The automatic detection device of a wireless transmission control unit according to claim 1, characterized in that: carry out the function detection to wireless transmission control unit by automated inspection frock host computer in the automated inspection mode, the automated inspection frock host computer still includes:
the function detection module: detecting and analyzing the functional parameters of the wireless transmission control unit; the detection and analysis of the functional parameters comprise key detection, valve opening detection, pulse counting detection, voltage acquisition detection and strong magnetic interference detection.
6. The automatic detection device of a wireless transmission control unit according to claim 5, characterized in that: the automatic detection tool host further comprises a 4-line valve and a button for controlling the opening and closing of the 4-line valve, the 4-line valve comprises a simulation valve, a positive electrode, a negative electrode, a first feedback line and a second feedback line, and the positive electrode, the negative electrode, the first feedback line and the second feedback line are respectively and independently electrically connected with the simulation valve and the automatic detection tool host; when the automatic detection tool host applies forward voltage to the positive electrode of the 4-wire valve, the simulation valve is opened, and after the simulation valve is opened, the first feedback line and the second feedback line are conducted; when the automatic detection tool host applies forward voltage to the negative electrode of the 4-wire valve, the simulation valve is closed, and after the simulation valve is closed, the first feedback line and the second feedback line are disconnected;
the function detection module comprises a function detection module and a function detection module,
the button detection submodule comprises: the button is pressed, and whether the button is normal or not is judged according to the conduction between the first feedback line and the second feedback line;
4 line valve detection submodule: the control circuit is used for pressing the button to open or close the 4-wire valve and judging whether the 4-wire valve is normal or not according to the conduction between the first feedback line and the second feedback line.
7. The automatic detection device of a wireless transmission control unit according to claim 6, characterized in that: the function detection module further comprises:
and the pulse counting and detecting submodule is used for sending a plurality of pulses to the number deducting part of the wireless transmission control unit, receiving the pulse quantity fed back to the automatic detection tool host by the wireless transmission control unit through the UART port, and comparing, analyzing and detecting the fed-back pulse quantity by the sent pulse quantity.
8. The automatic detection device of a wireless transmission control unit according to claim 6, characterized in that: the function detection module further comprises:
and the acquisition voltage detection submodule is used for acquiring the voltage value of the wireless transmission control unit, receiving the voltage value fed back by the wireless transmission control unit through the UART port and comparing, analyzing and detecting the acquired voltage value with the fed back voltage value.
9. The automatic detection device of a wireless transmission control unit according to claim 7, characterized in that: the function detection module further comprises:
strong magnetic interference detection submodule: and sending a low level for several seconds to the wireless transmission control unit deduction part, simulating strong magnetic interference, and detecting the strong magnetic interference.
10. The automatic detection device of a wireless transmission control unit according to claim 1, characterized in that: the automatic detection tool host machine further comprises:
a detection recording module: the automatic detection tool host is used for storing the detection result in a fixed format;
a record clearing module: the wireless communication control unit is used for clearing channel information of the wireless communication test of the wireless transmission control unit after the test is finished, and connecting the wireless transmission control unit to enter a default channel after the next wireless transmission control unit is electrified;
a record sending module: the automatic detection tool host is used for collecting and storing detection result data and transmitting the detection result data to the server after a designated command bar code is scanned through the code scanning gun.
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| CN110995369B (en) | 2021-09-14 |
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