There is no limit to creativity, and the instrument is invented. Today we introduce a national invention patent for the invention - a transmitter based on the verification function. The patent was filed by Chongqing Sichuan Instrument Automation Co., Ltd. and was authorized to be announced on March 15, 2017.
Description
The utility model relates to the field of transmitter calibration, in particular to a transmitter based on a verification function.
Background of the invention
A transmitter is a converter that converts the output signal of a sensor into a signal that can be recognized by the controller (or a signal source that converts the non-electricity of the sensor input into an electrical signal while amplifying it for remote measurement and control). The sensor and transmitter together form an automatically controlled monitoring signal source. Different physical quantities require different sensors and corresponding transmitters. There are many types of transmitters. The transmitters used in industrial control instruments mainly include temperature transmitters, pressure transmitters, flow transmitters, current transmitters, and voltage transmitters.
At present, the application of pressure transmitters in industrial fields is very common. In the industrial production process, the accuracy and accuracy of pressure detection directly affect the entire industrial production chain. Therefore, it is often necessary to reconfigure and pressure calibrate the transmitter at the application site of the pressure transmitter.
However, most of the current pressure transmitters are configured and calibrated by combining the local LCD display with the external portable communicator or the upper configuration software. Using this method, the transmitter needs to meet the same protocol standard as the handheld device or the host software, which will increase the development cost, and the communication link is susceptible to electromagnetic pulse interference in the complex environment of the site, causing configuration and calibration failure. . For the user, it will increase the cost of the liquid crystal and the power consumption of the meter. Especially for the wireless pressure transmitter, the increase of the display module will reduce the service life of the battery.
Summary of the invention
In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a transmitter based on a verification function, which is used to solve the problem that the transmitter needs to be combined with a liquid crystal display when the transmitter is in the prior art. Work with the Communicator or the host configuration software to complete the verification problem.
Figure is a block diagram of the utility model based on the verification function
To achieve the above and other related objects, the present invention provides a transmitter based on a verification function, comprising: a controller, and an acquisition module and a verification control module connected to the controller, the collection module is connected An output port of the display is configured to collect a level of the output port, the controller is configured to detect whether the transmitter enters a verification mode according to a level, and the verification control module is configured to enter a verification mode Transmitter. The verification control module includes a first button, a second button, a third button, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, and a third capacitor, one end of the first resistor One end of the first capacitor is connected, one end of the second resistor is connected to one end of the second capacitor, and one end of the third resistor is connected to one end of the third capacitor, and the first resistor, the second resistor and the third resistor are One end is connected to the voltage source, and the other ends of the first capacitor, the second capacitor and the third capacitor are grounded, and one end of the first button is connected between the first resistor and the first capacitor, and the second button One end is connected between the second resistor and the second capacitor, and one end of the third button is connected between the third resistor and the third capacitor.
The first button, the second button, and the third button are all switch buttons. The other ends of the first button, the second button and the third button are respectively grounded.
As described above, the calibration function-based transmitter of the present invention has the following beneficial effects: the level of the output port of the display is collected by the acquisition module, and the controller detects whether the transmitter is based on the level of the level. When entering the verification mode, when the output port of the display collected by the acquisition module is high, the controller enters the verification mode; when the output port of the display collected by the acquisition module is low, the controller enters the normal working mode. The controller verifies the transmitter according to the input of the verification control module, and the transmitter can be verified without the cooperation of the handheld device or the upper configuration software. When the transmitter has its own display, the power of the display is unplugged. The transmitter can be switched to adjust to the calibration mode, which reduces the cost of the calibration transmitter and facilitates verification.
Description
The utility model relates to the field of transmitter calibration, in particular to a transmitter based on a verification function.
Background of the invention
A transmitter is a converter that converts the output signal of a sensor into a signal that can be recognized by the controller (or a signal source that converts the non-electricity of the sensor input into an electrical signal while amplifying it for remote measurement and control). The sensor and transmitter together form an automatically controlled monitoring signal source. Different physical quantities require different sensors and corresponding transmitters. There are many types of transmitters. The transmitters used in industrial control instruments mainly include temperature transmitters, pressure transmitters, flow transmitters, current transmitters, and voltage transmitters.
At present, the application of pressure transmitters in industrial fields is very common. In the industrial production process, the accuracy and accuracy of pressure detection directly affect the entire industrial production chain. Therefore, it is often necessary to reconfigure and pressure calibrate the transmitter at the application site of the pressure transmitter.
However, most of the current pressure transmitters are configured and calibrated by combining the local LCD display with the external portable communicator or the upper configuration software. Using this method, the transmitter needs to meet the same protocol standard as the handheld device or the host software, which will increase the development cost, and the communication link is susceptible to electromagnetic pulse interference in the complex environment of the site, causing configuration and calibration failure. . For the user, it will increase the cost of the liquid crystal and the power consumption of the meter. Especially for the wireless pressure transmitter, the increase of the display module will reduce the service life of the battery.
Summary of the invention
In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a transmitter based on a verification function, which is used to solve the problem that the transmitter needs to be combined with a liquid crystal display when the transmitter is in the prior art. Work with the Communicator or the host configuration software to complete the verification problem.
Figure is a block diagram of the utility model based on the verification function
To achieve the above and other related objects, the present invention provides a transmitter based on a verification function, comprising: a controller, and an acquisition module and a verification control module connected to the controller, the collection module is connected An output port of the display is configured to collect a level of the output port, the controller is configured to detect whether the transmitter enters a verification mode according to a level, and the verification control module is configured to enter a verification mode Transmitter. The verification control module includes a first button, a second button, a third button, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, and a third capacitor, one end of the first resistor One end of the first capacitor is connected, one end of the second resistor is connected to one end of the second capacitor, and one end of the third resistor is connected to one end of the third capacitor, and the first resistor, the second resistor and the third resistor are One end is connected to the voltage source, and the other ends of the first capacitor, the second capacitor and the third capacitor are grounded, and one end of the first button is connected between the first resistor and the first capacitor, and the second button One end is connected between the second resistor and the second capacitor, and one end of the third button is connected between the third resistor and the third capacitor.
The first button, the second button, and the third button are all switch buttons. The other ends of the first button, the second button and the third button are respectively grounded.
As described above, the calibration function-based transmitter of the present invention has the following beneficial effects: the level of the output port of the display is collected by the acquisition module, and the controller detects whether the transmitter is based on the level of the level. When entering the verification mode, when the output port of the display collected by the acquisition module is high, the controller enters the verification mode; when the output port of the display collected by the acquisition module is low, the controller enters the normal working mode. The controller verifies the transmitter according to the input of the verification control module, and the transmitter can be verified without the cooperation of the handheld device or the upper configuration software. When the transmitter has its own display, the power of the display is unplugged. The transmitter can be switched to adjust to the calibration mode, which reduces the cost of the calibration transmitter and facilitates verification.
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