CN217741723U

CN217741723U - Radio frequency module detection system

Info

Publication number: CN217741723U
Application number: CN202220939117.6U
Authority: CN
Inventors: 俞春兰; 张锋
Original assignee: Ningbo Sanxing Smart Electric Co Ltd
Current assignee: Ningbo Sanxing Smart Electric Co Ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-11-04
Anticipated expiration: 2032-04-21

Abstract

The utility model relates to a radio frequency module detecting system for detect the communication link of the product that has the radio frequency module, its characterized in that: the tool jig comprises a preset frequency point, and the radio frequency module to be detected is configured to be the same as the tool jig in frequency point, so that the tool jig can be in communication connection with the radio frequency module with the same frequency point. The utility model has the advantages of: the system avoids same frequency interference by a preset frequency point mode without adding shielding equipment; meanwhile, a complex automatic frequency modulation algorithm is replaced by manually setting the designated frequency point, so that the development difficulty is reduced; in addition, the operation is convenient, the device is suitable for simultaneous operation of a plurality of assembly lines and is suitable for batch production.

Description

Radio frequency module detection system

Technical Field

The utility model relates to a radio frequency field, in particular to radio frequency module detecting system.

Background

The radio frequency module is a module which is responsible for loading and transmitting radio frequency signals and processing and sending the returned data signals into the intelligent unit of the reader-writer. The radio frequency module is used as an indispensable key device in the electric energy meter, the performance of the radio frequency module directly influences the performance and the reliability of the whole electric energy meter, and in order to check the basic performance index of the radio frequency module in the prior art, the radio frequency module is usually required to be communicated with the electric energy meter through a wireless meter reading terminal so as to test whether a communication link of the radio frequency module in the electric energy meter can be normally communicated.

The wireless meter reading terminal uses a common tool fixture, such as a tool fixture based on technologies such as FSK and LORA; because the application occasions of the tool jig are simple, the tool jig does not have frequency hopping and RSSI technology generally, and therefore the problem of same frequency point interference generally exists when a plurality of modules with the same frequency point exist in a communication range in production and use. The simplest method for resisting same frequency interference comprises the following steps: interference is avoided by adjusting the distance between adjacent devices, but the problem restricts the production inspection efficiency of products to a certain extent because the limitation of the production space of a factory cannot be solved by adopting the method; in order to solve the problem of space limitation, a method for reducing co-channel interference by increasing a shielding case or reducing transmitting power is adopted, but the problems of high implementation difficulty and high cost of the shielding case can occur in practical use, so that the production implementation and the efficiency are influenced. Thus, further improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem to provide an avoid same frequency interference method simple, convenient operation's radio frequency module detecting system to prior art's current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a radio frequency module detection system is used for detecting a communication link of a product with a radio frequency module, and is characterized in that: the tool jig comprises a preset frequency point, and the radio frequency module to be detected is configured to be the same as the tool jig in frequency point, so that the tool jig can be in communication connection with the radio frequency module with the same frequency point.

In order to realize the simultaneous testing of a plurality of products, preferably the tooling fixtures are multiple, and the frequency points of each tooling fixture are different.

In order to obtain the frequency point information of the tool jig, a bar code or a two-dimensional code used for representing the frequency point information is arranged on each tool jig, and the bar code or the two-dimensional code can be identified and arranged in a radio frequency module of a product.

Furthermore, the system also comprises a scanning device for identifying the bar code or the two-dimensional code, and the scanning device is in communication connection with the radio frequency module.

Furthermore, the scanning device is in communication connection with the radio frequency module through a communication module without frequency point interference.

Preferably, the communication module is an RS485 communication module or a near infrared communication module.

In order to make the structure more compact, the scanning device is arranged in a product.

The utility model discloses in, be equipped with FSK wireless communication module or LORA wireless communication module with the communication of radio frequency module mutually in the frock tool.

Preferably, the product is an electric energy meter.

Preferably, the tool jig is a wireless meter reading terminal.

Compared with the prior art, the utility model has the advantages of: because the tool jig is preset with frequency points, the radio frequency module to be detected is configured to be the same frequency point as the tool jig during detection, so that the tool jig can be in communication connection with the radio frequency module with the same frequency point, the system avoids same frequency interference in a mode of presetting the frequency points, and shielding equipment does not need to be added; meanwhile, a complex automatic frequency modulation algorithm is replaced by a mode of manually setting designated frequency points, so that the development difficulty is reduced; in addition, convenient operation is fit for many assembly lines simultaneous operation, is fit for batch production.

Drawings

Fig. 1 is a schematic block diagram of an embodiment of the present invention, in which the rf module detecting system is provided.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, the radio frequency module detection system in this embodiment includes a tooling fixture with a preset frequency point, and the radio frequency module to be detected is configured to have the same frequency point as the tooling fixture, so as to implement that the tooling fixture can be in communication connection with the radio frequency module with the same frequency point, and the tooling fixture is used for detecting a communication link of a product with the radio frequency module. In this embodiment, an FSK wireless communication module or an LORA wireless communication module communicating with the rf module is disposed in the tool.

To avoid frequency interference when multiple products are detected, for example: in order to detect the product of production on N assembly lines, the frock tool is configured into N in this embodiment to every frock tool's frequency point is all inequality, guarantees between the frequency point can not overlap and disturb. In this embodiment, the product is the electric energy meter, and correspondingly, the frock tool is wireless meter reading terminal.

For the tooling jig of each different frequency point, each tooling jig is provided with a bar code or a two-dimensional code for representing frequency point information, and the bar code or the two-dimensional code can be identified and arranged in a radio frequency module of a product; the most common methods are: and the bar code or the two-dimensional code is attached to the tooling jig, so that the frequency point information of the tooling jig can be conveniently scanned and read.

In addition, in order to realize the identification of the bar code or the two-dimensional code, the embodiment further comprises a scanning device for identifying the bar code or the two-dimensional code, and the scanning device is in communication connection with the radio frequency module. Of course, it is preferred that the scanning device is located within the product. The scanning device is in communication connection with the radio frequency module through a communication module without frequency point interference, and the most common communication module is an RS485 communication module or a near infrared communication module. Like this can read corresponding frequency point information through the bar code or the two-dimensional code of scanning frock tool to set up in the product on the corresponding assembly line through RS485 communication module or near-infrared communication module.

Of course, the frequency point of the radio frequency module can also be set to be the same as the frequency point of the tooling jig manually.

The specific process for detecting the products produced on the N assembly lines is as follows: presetting different frequency points for the tool fixtures configured on each production line, and then scanning the bar code or the two-dimensional code of each tool fixture by using a scanning device to read corresponding frequency point information; the product is arranged in a product on a corresponding assembly line through an RS485 communication module or a near infrared communication module, and the frequency point of the product can be automatically switched to a designated frequency point after receiving a frequency point information setting command; finally, detecting whether the corresponding product communication link can normally communicate through a tooling jig so as to detect whether the radio frequency module of the product is qualified; and after the inspection is finished, restoring the frequency point of the inspected product to the default frequency point. Because the frequency points of the tooling jig on each assembly line are different, and the frequency points of the products on each assembly line are configured with the same frequency points as the tooling jig during detection, the method avoids same frequency interference and is suitable for simultaneous operation of a plurality of assembly lines.

The utility model provides a radio frequency module detecting system avoids same frequency interference through presetting the frequency point mode, need not to increase shielding equipment; meanwhile, a complex automatic frequency modulation algorithm is replaced by a mode of manually setting designated frequency points, so that the development difficulty is reduced; in addition, acquire the frequency point information unanimous with the frock tool through the scanning, convenient operation is fit for many assembly lines simultaneous operation, is fit for batch production.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A radio frequency module detection system for detecting a communication link of a product having a radio frequency module, characterized in that: the tool jig comprises a preset frequency point, and the radio frequency module to be detected is configured to be the same as the tool jig in frequency point, so that the tool jig can be in communication connection with the radio frequency module with the same frequency point.

2. The radio frequency module detection system of claim 1, wherein: the tool jig is multiple, and the frequency points of each tool jig are different.

3. The radio frequency module detection system of claim 2, wherein: each tooling fixture is provided with a bar code or a two-dimensional code used for representing frequency point information, and the bar code or the two-dimensional code can be identified and set in a radio frequency module of a product.

4. The radio frequency module detection system of claim 3, wherein: the system also comprises a scanning device for identifying the bar code or the two-dimensional code, and the scanning device is in communication connection with the radio frequency module.

5. The RF module detection system of claim 4, wherein: the scanning device is in communication connection with the radio frequency module through a communication module without frequency point interference.

6. The RF module inspection system of claim 5, wherein: the communication module is an RS485 communication module or a near infrared communication module.

7. The radio frequency module detection system according to any one of claims 4 to 6, wherein: the scanning device is arranged in the product.

8. The radio frequency module detection system of any one of claims 1 to 6, wherein: an FSK wireless communication module or an LORA wireless communication module which is communicated with the radio frequency module is arranged in the tooling jig.

9. The radio frequency module detection system of claim 1, wherein: the product is an electric energy meter.

10. The rf module detection system of claim 9, wherein: the tool jig is a wireless meter reading terminal.