CN220206731U - Instrument signal checking device - Google Patents

Abstract

The utility model discloses an instrument signal checking device, which comprises: the device comprises a case, and a controller, a touch screen, a power module and an adjustable power supply which are arranged in the case; the controller is connected with the touch screen, so that digital signal interaction between the controller and the touch screen is realized; the power module is connected with the controller to supply power to the controller and the touch screen; the power module and the adjustable power supply are connected with an external power supply input; the controller is connected to a signal binding post arranged on the surface of the case through a wire, and the signal instrument to be checked is connected with the corresponding signal binding post through a wire connector so as to realize the connection between the signal instrument to be checked and the controller; the device can detect and check the instrument signal and automatically convert the related check data.

Description

Instrument signal checking device

Technical Field

The utility model belongs to the technical field of data verification, and relates to an instrument signal verification device.

Background

The instruments and meters are widely applied in the field of automatic control, and whether the instruments and meter equipment run reliably is directly related to the healthy running of an automatic control system, so that the detection or verification of the signals of the instruments and meters is very necessary at regular intervals. The existing instrument checking equipment has strong specificity, cannot adapt to the checking of various instrument signal types, and when checking instrument signals of different types, the checking instrument matched with the instrument needs to be replaced, and the frequent replacement of the instrument increases larger workload for checking work; the existing instrument calibration equipment has low automation level, most of calibration works need to use tools such as universal meters, clamp-on ampere meters and the like to be matched for use, the calibration process is tedious, errors are easy to occur, and the requirements on the skills of calibration staff are high; the existing instrument verification equipment is not provided with a special power supply for instrument verification, an external power supply which is suitable for the instrument verification equipment is required to be additionally connected in the instrument verification process, the verification work wiring is complex, and the test is inconvenient; the existing instrument checking equipment only checks the linearity and the like of instrument signals, the conversion work between the signal size and the measured numerical value is completely calculated manually by technicians, the work has certain speciality, and the requirements on the technical capacity of the personnel are high. The current common instrument signals mainly comprise 4-20mA, 0-5V and 0-10V, the device can realize the detection and verification of input and output signals in the signal range of 0-10V and 0-20mA, and the device is provided with an adjustable power supply as a working power supply of instrument equipment in the verification process, so that the verification wiring is greatly simplified, the device performs man-machine interaction through a touch screen, the data display is visual, and the operation is flexible and convenient. Meanwhile, the device is also provided with a function of automatically converting the signal size and the measured value, and can intuitively display the measured data of the instrument after the measurement range parameter is set.

Disclosure of Invention

The utility model aims to provide an instrument signal verification device, and aims to overcome the defects of high deployment cost and high implementation difficulty of the existing data acquisition technology.

To this end, the utility model proposes a device for checking a signal of an instrument, comprising: the computer case, and the controller, the touch screen, the power module and the adjustable power supply which are arranged in the computer case.

The controller is connected with the touch screen, so that digital signal interaction between the controller and the touch screen is realized; the power module is connected with the controller to supply power to the controller and the touch screen; the power module and the adjustable power supply are connected with an external power supply input.

The controller is connected to a signal binding post arranged on the surface of the case through a wire, and the signal instrument to be checked is connected with the corresponding signal binding post through a wire connector, so that the signal instrument to be checked is connected with the controller.

The signal wiring terminals connected with the controller comprise current signal wiring terminals and voltage signal wiring terminals; the current signal binding post comprises an input current signal binding post and an output current signal binding post, and the voltage signal binding post comprises an input voltage signal binding post and an output voltage signal binding post.

The input current signal binding post is connected to a signal instrument to be verified, of which the signal to be verified is an output current signal, through an input current signal connector and a lead; the output current signal binding post is connected to a signal instrument to be verified, of which the signal to be verified is an input current signal, through an output current signal connector and a lead; the input voltage signal binding post is connected to a signal instrument to be verified, of which the signal to be verified is an output voltage signal, through an input voltage signal connector and a lead; the output voltage signal binding post is connected to a signal instrument to be verified, of which the signal to be verified is an input voltage signal, through an output voltage signal connector and a lead.

Wherein the adjustable power supply comprises a 0-220V direct current adjustable power supply and a 0-220V alternating current adjustable power supply.

The 0-220V direct current adjustable power supply and the 0-220V alternating current adjustable power supply output end are connected to a power output binding post arranged on the surface of the chassis through wires, the signal instrument to be checked is connected with the corresponding power output binding post through a wire connector, and the adjustable power supply output is adjusted to the power supply voltage level required by the signal instrument to be checked, so that power supply to the signal instrument to be checked is realized.

Unlike the prior art, the instrument signal checking device provided by the utility model comprises: the device comprises a case, and a controller, a touch screen, a power module and an adjustable power supply which are arranged in the case; the controller is connected with the touch screen, so that digital signal interaction between the controller and the touch screen is realized; the power module is connected with the controller to supply power to the controller and the touch screen; the power module and the adjustable power supply are connected with an external power supply input; the controller is connected to a signal binding post arranged on the surface of the case through a wire, and the signal instrument to be checked is connected with the corresponding signal binding post through a wire connector so as to realize the connection between the signal instrument to be checked and the controller; the adjustable power supply is connected to a power output binding post arranged on the surface of the chassis through a wire, and the signal instrument to be checked is connected with the corresponding power output binding post through a wire connector so as to supply power to the signal instrument to be checked. The device can detect and check the instrument signal and automatically convert the related check data.

Drawings

The utility model and/or additional aspects and advantages will be apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an instrument signal checking device provided by the utility model.

Fig. 2 is a schematic diagram of a front structure of an instrument signal checking device according to the present utility model.

Fig. 3 is a schematic diagram of a back structure of an instrument signal checking device according to the present utility model.

Fig. 4 is a schematic diagram of an internal structure of an instrument signal checking device according to the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Fig. 1 is a schematic diagram of an apparatus for verifying a signal of an instrument according to an embodiment of the present utility model, including: the device comprises a case 1, a controller 2, a touch screen 3, a power module 4, an adjustable power supply 5, a signal binding post 6 and a power output binding post 7 which are arranged in the case 1;

the controller 2 is connected with the touch screen 3, and the power module 4 is connected with the controller 2 to supply power to the controller 2 and the touch screen 3; the power module 4 and the adjustable power supply 5 are connected with an external power supply input;

the controller 2 is connected to a signal binding post 6 arranged on the surface of the case 1 through a wire, and the signal instrument 8 to be checked is connected with the corresponding signal binding post 6 through a wire connector so as to realize the connection of the signal instrument 8 to be checked and the controller 2; the adjustable power supply 5 is connected to a power output binding post 7 arranged on the surface of the case 1 through a wire, and the signal instrument 8 to be checked is connected with the corresponding power output binding post 7 through a wire connector so as to supply power to the signal instrument 8 to be checked.

The signal terminals 6 to which the controller 2 is connected include an input current signal terminal 61, an output current signal terminal 62, an input voltage signal terminal 63, and an output voltage signal terminal 64.

The input current signal terminal 61 is connected to a signal meter to be verified, such as meter 82 in fig. 1, with a signal to be verified being an output current signal; the output current signal terminal 62 is connected to a signal meter to be verified, such as meter 81 in fig. 1, whose signal to be verified is an input current signal, through a wire; the input voltage signal terminal 63 is connected to a signal meter to be verified, such as meter 84 in fig. 1, whose signal to be verified is an output voltage signal, through a wire; the output voltage signal terminal 64 is connected by a wire to a signal meter to be verified, such as meter 83 in fig. 1, where the signal to be verified is an input voltage signal.

Wherein the adjustable power supply 5 comprises a 0-220V direct current adjustable power supply 51 and a 0-220V alternating current adjustable power supply 52.

The power output terminal 7 includes a dc power output terminal 71 and an ac power output terminal 72.

The output end of the 0-220V direct current adjustable power supply 51 is connected to the direct current power supply output binding post 71,0-220V alternating current adjustable power supply 52, the output end of the alternating current power supply output binding post 72 is connected to the signal instrument 8 to be checked, the corresponding power supply output binding post 7 is selected according to the type of working voltage, and the output of the adjustable power supply 5 is adjusted to the power supply voltage level required by the signal instrument 8 to be checked, so that power supply to the signal instrument 8 to be checked is realized.

Specifically, the utility model aims to realize the input and output detection of any instrument and meter signal in the range of 0-10V and 0-20 mA. The device provided by the utility model can provide the 0-220V direct current adjustable power supply 51 and the 0-220V alternating current adjustable power supply 52, and the corresponding power supply type and voltage are selected to supply power to the instrument in the verification process. The device is provided with 0-10V and 0-20mA output, an output signal can be regulated through the touch screen 3, meanwhile, 0-10V and 0-20mA input is provided, the measured value can be displayed in real time through the touch screen 3, after the corresponding relation of the measured value range is set in the touch screen 3, the actual value of the measured object of the signal instrument 8 to be verified is automatically calculated through the controller 2, and the actual value of the measured object is displayed in real time.

In the device, the controller 2 and the touch screen 3 are connected in a communication mode, so that bidirectional transmission of digital signals is realized, the touch screen 3 can display test data in real time, and the signal output of the controller 2 can be adjusted by operating on the touch screen 3. The power module 4 is connected with the controller 2 and supplies power to the controller 2 and the touch screen 3. The 0-220V direct current adjustable power supply 51 and the 0-220V alternating current adjustable power supply 52 supply power to the external signal instrument 8 to be checked, and the corresponding power supply type and power supply voltage can be selected for connection according to the requirements of external instruments and equipment.

As shown in fig. 2, the touch screen 3 is mounted on the panel of the chassis 1 and faces outward; as shown in fig. 3, an input current signal terminal 61, an output current signal terminal 62, an input voltage signal terminal 63, an output voltage signal terminal 64, a dc power output terminal 71, and an ac power output terminal 72 are mounted on the back plate of the casing 1. As shown in fig. 4, the controller 2, the power module 4, the 0-220V dc adjustable power supply 51, and the 0-220V ac adjustable power supply 52 are installed inside the cabinet 1.

Through programming the controller 2 and the touch screen 3, the controller 2 collects signals of 0-20mA and 0-10V, which are received by the signal instrument 8 to be verified, on the input current signal binding post 61 and the input voltage signal binding post 63 in real time, and finally sends the signals to the input signal display frame of the instrument signal test interface of the touch screen 3 for real-time display through operation and data conversion. The input signal data conversion interface is respectively set by the 0-20mA input signal and the 0-10V input signal, the input signal data conversion interface is provided with a signal real-time value display, a data conversion result display, a signal range input frame and an actual measurement range input frame, after corresponding values are input in the signal range input frame and the actual measurement range input frame, the controller 2 gives out an actual side measured value corresponding to the measurement signal in real time through operation, and the actual side measured value is displayed in the data conversion result frame in real time, and the function is used for checking the output type signal instrument.

By programming the controller 2 and the touch screen 3, the controller 2 can output 0-20mA and 0-10V for verification of the input signal instrument. The touch screen 3 instrument signal test interface is provided with an output signal setting frame, corresponding 0-20mA and 0-10V signals are output through real-time operation of the controller 2 after corresponding values are input in the output signal setting frame, and the signals are sent to an output current signal binding post 62 and an output voltage signal binding post 64 on the back plate of the case. For the convenience of test operation, the number input mode of the output signal setting frame is two modes, wherein the first mode is to directly input a number of 0-10.00 (or 0-20.00) through a touch screen soft keyboard, and directly output a corresponding current (or voltage) signal on an output signal binding post; the second is to adjust the voltage in the range of 0-20mA and 0-10V by small amplitude increase and decrease through the increase and decrease keys arranged on the touch screen.

The device is internally provided with a 0-220V direct current adjustable power supply 51 and a 0-220V alternating current adjustable power supply 52,0-220V direct current adjustable power supply 51 and a 0-220V alternating current adjustable power supply 52 respectively, the output ends of the 0-220V direct current adjustable power supply 51 and the 0-220V alternating current adjustable power supply 52 are connected to a power output terminal 7 of a backboard of a chassis of the device, and an external signal instrument 8 to be tested can be connected with a working power supply at the power output terminal 7.

Compared with the prior art, the device respectively provides 1-20mA and 0-10V output signals, can be arbitrarily adjusted in the range, meets the input check of various input instrument signals, and has two input modes: firstly, any numerical value in the adjustable range is input through a soft keyboard to carry out jump adjustment, and secondly, the jump adjustment is carried out according to a certain step length in the adjustable range through an increase and decrease button. The device also provides 1-20mA and 0-10V input signal interfaces, can acquire and display the value of the signal in real time, and can meet the detection of output signals of various measuring instruments and meters.

The device adopts the controller to collect signal data and perform automatic operation, adopts the touch screen as a man-machine interface, adopts communication with the controller to perform rapid data exchange, can display the signal detection of the instrument and the instrument in the interface in real time, can flexibly adjust output signals through the touch screen, is friendly to man and machine, and is flexible to operate.

The device is provided with a 0-220V direct current adjustable power interface and a 0-220V alternating current adjustable power interface which are externally powered, the corresponding interfaces can be selected to be connected with a power supply in the checking process of the instruments and meters, the power supply voltage is regulated to meet the power supply requirement of the instruments and meters, and power supply equipment is not required to be additionally added in the checking process of the instruments and meters, so that the wiring is simple and the operation is convenient.

The device provides a range conversion function for 1-20mA and 0-10V input signals respectively, and can calculate in real time according to measurement data through the signal input range and the range corresponding value on the touch screen, display the actual value of a measurement object without manual operation, track the signal and the actual measurement value in real time, and improve the intuitiveness.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present utility model in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present utility model.

Although embodiments of the present utility model have been shown and described above, it will be understood that the embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (5)

1. An instrument signal verification device, comprising: the device comprises a case, and a controller, a touch screen, a power module and an adjustable power supply which are arranged in the case;

the controller is connected with the touch screen, and digital signal interaction is realized between the controller and the touch screen; the power supply module is connected with the controller to supply power to the controller and the touch screen; the power module and the adjustable power supply are connected with an external power supply input;

the controller is connected to a signal binding post arranged on the surface of the chassis through a wire, and the signal instrument to be verified is connected with the corresponding signal binding post through a wire connector so as to realize the connection between the signal instrument to be verified and the controller; the adjustable power supply is connected with the signal instrument to be checked to supply power.

2. The meter signal verification device of claim 1, wherein the signal terminals to which the controller is connected include a current signal terminal and a voltage signal terminal; the current signal binding post comprises an input current signal binding post and an output current signal binding post, and the voltage signal binding post comprises an input voltage signal binding post and an output voltage signal binding post.

3. The meter signal verification device of claim 2, wherein the input current signal terminal is connected to a meter to be verified, the meter to be verified being an output current signal, through an input current signal connector and a wire; the output current signal binding post is connected to a signal instrument to be verified, the signal to be verified is an input current signal, through an output current signal connector and a lead; the input voltage signal binding post is connected to a signal instrument to be verified, of which the signal to be verified is an output voltage signal, through an input voltage signal connector and a lead; the output voltage signal binding post is connected to a signal instrument to be verified, of which the signal to be verified is an input voltage signal, through an output voltage signal connector and a lead.

4. The meter signal verification device of claim 3, wherein the adjustable power source comprises a 0-220V dc adjustable power source and a 0-220V ac adjustable power source.

5. The instrument signal checking device according to claim 4, wherein the 0-220V dc adjustable power supply and the 0-220V ac adjustable power supply output end are connected to power supply output terminals arranged on the surface of the case through wires, the instrument signal to be checked is connected to the corresponding power supply output terminals through wire connectors, and the adjustable power supply output is adjusted to the power supply voltage level required by the instrument signal to be checked, so that power supply to the instrument signal to be checked is realized.