Ethernet power supply detection device and detection method

Abstract

The present invention discloses an Ethernet power supply detection device and a detection method thereof. The method comprises: first turning on the POE power supply of the production tooling, and then turning off the DC power supply of the production tooling; obtaining the current value of the DC power supply interface of the production tooling; judging whether the current value of the DC power supply interface obtained is less than or equal to the first current threshold; when it is less than or equal to the first current threshold, sending a query echo command to the product; judging whether the product returns an echo; when the product returns an echo, first turning on the DC power supply of the production tooling, and then turning off the POE power supply of the production tooling; obtaining the current value of the DC power supply interface of the production tooling; judging whether the current value of the DC power supply interface obtained is greater than the second current threshold, wherein the second current threshold is greater than the first current threshold; when it is greater than the second current threshold, the POE interface detection is successful, and the POE interface detection ends. This device and method can quickly screen defective products and improve efficiency.

Description

Technical Field

[0001] The present invention relates to Power Over Ethernet (POE) technology, and more specifically, to a Power Over Ethernet detection device and a detection method thereof. Background Art

[0002] Power over Ethernet (POE) refers to a technology that can provide DC power to some IP-based terminals while transmitting data signals to such devices without making any changes to the existing Ethernet Cat.5 cabling infrastructure.

[0003] At present, mainstream wired cameras in the market all support the Power over Ethernet (POE) function. During the production process, it is necessary to verify whether the POE function is easy to use. In factory production, people manually use the POE power supply interface to determine whether there is a problem with the equipment. Through intelligent methods, each device is tracked to determine the production and testing personnel to achieve traceability. There are cases of misjudgment and abnormal equipment outflow due to misoperation.

[0004] It is precisely because of the misjudgment of manual judgment that defective products are produced, which increases subsequent costs and reduces product quality. Summary of the invention

[0005] The present invention innovatively provides an Ethernet power supply detection device and a detection method thereof, which improves the accuracy and executability of POE verification in an intelligent manner, and avoids workers' missed screening due to subjective misjudgment during the production process.

[0006] To achieve the above technical objectives, on the one hand, the present invention discloses an Ethernet power supply detection device, wherein the production equipment is used to produce products, and the production tooling is used to test products. The Ethernet power supply detection device includes a test module and a control unit located on the production tooling, wherein the test module includes an Ethernet power supply interface and a DC power supply interface, and the Ethernet power supply interface and the DC power supply interface on the test module can be connected to the Ethernet power supply interface and the DC power supply interface on the product respectively, and the control unit is used to control the opening and closing of the Ethernet power supply and the DC power supply of the production tooling and to send a query echo command to the product; the test module also includes an analog-to-digital module connected to the DC power supply interface of the production tooling, and the control unit is also used to measure the current of the DC power supply interface of the production tooling through the analog-to-digital module.

[0007] Furthermore, the Ethernet power supply detection device also includes a relay connected to the Ethernet power supply interface and the DC power supply interface of the production tooling, and the control unit controls the switching of the Ethernet power supply and the DC power supply of the production tooling through the relay.

[0008] Furthermore, for the Ethernet power supply detection device, the control unit is built into the production tooling or externally connected to the production tooling.

[0009] Furthermore, for the Ethernet power supply detection device, in the case where the control unit is externally connected to the production tooling, the control unit and the production tooling are connected via an RS485 serial port.

[0010] Furthermore, for the Ethernet power supply detection device, the control unit is connected to a server.

[0011] To achieve the above-mentioned technical objectives, on the other hand, the present invention discloses a detection method for the above-mentioned Ethernet power supply detection device, including: first turning on the Ethernet power supply of the production tooling, and then turning off the DC power supply of the production tooling; obtaining the current value of the DC power interface of the production tooling; judging whether the current value of the DC power interface obtained is less than or equal to a first current threshold; when the current value of the DC power interface obtained is less than or equal to the first current threshold, sending a query echo command to the product; judging whether the product returns an echo; when the product returns an echo, first turning on the DC power supply of the production tooling, and then turning off the Ethernet power supply of the production tooling; obtaining the current value of the DC power supply of the production tooling; judging whether the current value of the DC power interface obtained is greater than a second current threshold, wherein the second current threshold is greater than the first current threshold; when the current value of the DC power interface obtained is greater than the second current threshold, the Ethernet power supply interface detection is successful, and the Ethernet power supply interface detection ends.

[0012] Further, for the detection method, the first current threshold is 0.05A.

[0013] Further, for the detection method, the second current threshold is 0.1A.

[0014] Furthermore, the detection method also includes: when the current value of the DC power interface obtained is greater than a first current threshold or when the product does not return an echo or when the current value of the DC power interface obtained is less than or equal to a second current threshold, the Ethernet power supply interface detection fails; first turning on the DC power supply of the production tooling, and then turning off the Ethernet power supply of the production tooling; and ending the Ethernet power supply interface detection.

[0015] Further, for the detection method, sending a query echo command to the product includes: sending an instruction to a DFT process of the product.

[0016] The beneficial effects of the present invention are:

[0017] The Ethernet power supply detection device and detection method provided by the embodiment of the present invention can quickly screen out defective products, improve efficiency, quickly intercept defective products, and thus improve product quality. The production process is optimized, and the accuracy and executability of POE verification are improved in an intelligent way to avoid workers' missed screening due to subjective misjudgment during the production process. It can quickly determine whether the process of switching between POE power supply and DC power supply is effective and available. The production status of each device, whether the functionality is intact, and the yield rate in the production process can be summarized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the figure,

[0019] Figure 1 A schematic diagram of the structure of an Ethernet power supply detection device provided by an embodiment of the present invention;

[0020] Figure 2 Another embodiment of the present invention provides Figure 1 The flowchart of the detection method of the Ethernet power supply detection device is shown. DETAILED DESCRIPTION

[0021] The Ethernet power supply detection device and the detection method provided by the present invention are explained and illustrated in detail below in conjunction with the drawings of the specification.

[0022] Figure 1 The structure diagram of an Ethernet power supply detection device provided by an embodiment of the present invention is shown in FIG. Figure 1 As shown, the production equipment 110 is used to produce the product 112, the production tool 120 is used to test the product 112, and the Ethernet power supply detection device includes a test module 122 and a control unit 130 located on the production tool 120. Among them, the test module 122 includes a power supply interface for Ethernet (POE) and a direct current (DC) power supply interface, and the Ethernet power supply interface and the DC power supply interface on the test module 122 can be connected to the Ethernet power supply interface and the DC power supply interface on the product 112 respectively. The control unit 130 is used to control the opening and closing of the Ethernet power supply (POE) and the direct current (DC) power supply of the production tool 120 and to send a query echo command to the product 112. The test module 122 also includes an analog-to-digital (AD) module 1222 connected to the DC power supply interface of the production tool 120, and the control unit 130 is also used to measure the current of the DC power supply interface of the production tool 120 through the analog-to-digital (AD) module 1222. Among them, the product 112 can be a network camera, also called an IP camera (IP Camera), referred to as IPC.

[0023] In this embodiment, the test module 122 of the production tool 120 includes a DC power supply and a POE network port, that is, the production tool 120 includes a POE power interface and a DC power interface. The production tool 120 may default that the product 112 is powered by a DC power supply.

[0024] The functions of the control unit 130 can be implemented by hardware or software, or by a combination of hardware and software. The control unit 130 can be built into the production tooling or externally connected to the production tooling. The control unit 130 can be an external computer (PC) of the production tooling 120. In the case where the control unit 130 is externally connected to the production tooling, the control unit 130 and the production tooling 120 can be connected via an RS485 serial port. The control unit 130 can control the power supply mode of the production tooling 120 via the RS485 serial port. The control unit 130 can send a specific serial code to control the POE power supply and DC power supply switches of the production tooling 120. The control unit 130 detects the current of the DC power interface of the production tooling 120 through the AD module 1222, and obtains the current value through RS485 communication.

[0025] In this embodiment, the test module 122 of the production tooling 120 may also include a relay 1224 connected to the POE power interface and DC power interface of the production tooling 120 , and the control unit 130 controls the switching of the POE power and DC power of the production tooling 120 through the relay 1224 .

[0026] As an optional implementation, the control unit 130 may be connected to a server to report the POE detection result to the server.

[0027] Figure 2 A flowchart of a detection method of the Ethernet power detection device provided in another embodiment of the present invention.

[0028] like Figure 2 As shown, in step S201, the Power over Ethernet (POE) power supply of the production tooling 120 is first turned on, and then the direct current (DC) power supply of the production tooling 120 is turned off.

[0029] In step S203 , the current value of the DC power interface of the production tool 120 is obtained.

[0030] In step S205, it is determined whether the current value of the DC power interface obtained is less than or equal to the first current threshold value to determine whether the DC power supply is normally shut down. If the current value of the DC power interface obtained is less than or equal to the first current threshold value, the process proceeds to step S207; otherwise, the process proceeds to step S219. The first current threshold value is, for example, 0.05A. As an optional implementation, determining whether the current value of the DC power interface obtained is less than or equal to the first current threshold value may include: determining whether the current value of the DC power interface obtained is within the range of 0 to 0.05A.

[0031] In step S207 , a query echo command is sent to the product 112 . As an optional implementation, step S207 may include: sending an instruction to the DFT process of the product 112 .

[0032] In step S209, determine whether product 112 returns an echo. If product 112 returns an echo, the process proceeds to step S211; otherwise, the process proceeds to step S219. If there is an echo, it means that product 112 can go online normally in POE power supply mode; if there is no echo, product 112 is in an offline state. As an optional implementation, product 112 returning an echo may include: product 112 returns an echo via the SSH protocol. SSH is the abbreviation of Secure Shell, which was developed by the Network Working Group of IETF; SSH is a security protocol based on the application layer. SSH is a relatively reliable protocol that is specifically designed to provide security for remote login sessions and other network services. The use of the SSH protocol can effectively prevent information leakage during remote management.

[0033] In step S211, the DC power supply of the production tooling 120 is first turned on, and then the POE power supply is turned off.

[0034] In step S213 , the current value of the DC power interface of the production tool 120 is obtained.

[0035] In step S215, it is determined whether the current value of the DC power interface obtained is greater than the second current threshold value to determine whether the DC power is turned on normally. The second current threshold value is greater than the first current threshold value. If the current value of the DC power interface obtained is greater than the second current threshold value, the process proceeds to step S217; otherwise, the process proceeds to step S219. The second current threshold value is, for example, 0.1A.

[0036] Step S217: the POE interface is detected successfully, and the process proceeds to step S223.

[0037] Step S219: POE interface detection fails.

[0038] In step S221 , the control unit 130 restores the current state of the production tooling 120 , first turning on the DC power supply of the production tooling 120 , and then turning off the POE power supply of the production tooling 120 .

[0039] Step S223, end the POE interface detection. After detecting that the POE has succeeded or failed, the DC power supply mode is restored, so that the whole process can intuitively determine whether the POE function can be used.

[0040] The detection method of the Ethernet power supply detection device of this embodiment may also include the following steps: the control unit 130 reports the POE detection result to the server.

[0041] The Ethernet power supply detection device and detection method provided by the embodiment of the present invention can quickly screen out defective products, improve efficiency, quickly intercept defective products, and thus improve product quality. The production process is optimized, and the accuracy and executability of POE verification are improved in an intelligent way to avoid workers' missed screening due to subjective misjudgment during the production process. It can quickly determine whether the process of switching between POE power supply and DC power supply is effective and available. The production status of each device, whether the functionality is intact, and the yield rate in the production process can be summarized.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the description of this specification, the description of reference terms such as "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples, unless otherwise clearly and specifically defined. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the scope of protection of the claims of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the scope of protection of the claims of the present invention.

Claims

1. A detection method for an Ethernet power supply detection device, wherein the production equipment is used to produce products, and the production tooling is used to test products, characterized in that: The Ethernet power supply detection device includes a test module and a control unit located on the production tooling, wherein the test module includes an Ethernet power supply interface and a DC power supply interface, the Ethernet power supply interface and the DC power supply interface on the test module can be connected to the Ethernet power supply interface and the DC power supply interface on the product respectively, and the control unit is used to control the opening and closing of the Ethernet power supply and the DC power supply of the production tooling and to send a query echo command to the product; The test module also includes an analog-to-digital module connected to the DC power interface of the production tooling, and the control unit is further used to measure the current of the DC power interface of the production tooling through the analog-to-digital module; The detection method comprises: First turn on the Ethernet power supply of the production tooling, and then turn off the DC power supply of the production tooling; Obtain the current value of the DC power interface of the production tooling; Determine whether the current value of the DC power interface obtained is less than or equal to a first current threshold value to determine whether the DC power supply is normally shut down; When the acquired current value of the DC power interface is less than or equal to the first current threshold, sending a query echo command to the product; Determine whether the product returns an echo; When the product returns an echo, first turn on the DC power supply of the production tooling, and then turn off the Ethernet power supply of the production tooling. Among them, when the product returns an echo, it means that the product is online normally in Ethernet power supply mode; Obtain the current value of the DC power interface of the production tooling; Determine whether the current value of the DC power interface obtained is greater than a second current threshold to determine whether the DC power supply is normally turned on, wherein the second current threshold is greater than the first current threshold; When the acquired current value of the DC power interface is greater than the second current threshold, the Ethernet power supply interface detection is successful, and the Ethernet power supply interface detection ends.

2. The detection method according to claim 1, characterized in that: The Ethernet power supply detection device also includes a relay connected to the Ethernet power supply interface and the DC power supply interface of the production tooling, and the control unit controls the switching of the Ethernet power supply and the DC power supply of the production tooling through the relay.

3. The detection method according to claim 1, characterized in that: The control unit is built into the production tool or externally connected to the production tool.

4. The detection method according to claim 3, characterized in that: In the case where the control unit is externally connected to the production tooling, the control unit and the production tooling are connected via an RS485 serial port.

5. The detection method according to claim 1, characterized in that: The control unit is connected to the server.

6. The detection method according to claim 1, characterized in that: The first current threshold is 0.05A.

7. The detection method according to claim 1, characterized in that: The second current threshold is 0.1A.

8. The detection method according to claim 1, characterized in that: Also includes: When the current value of the DC power interface obtained is greater than the first current threshold or when the product does not return an echo or when the current value of the DC power interface obtained is less than or equal to the second current threshold, the Ethernet power supply interface detection fails; First turn on the DC power supply of the production tooling, and then turn off the Ethernet power supply of the production tooling; End the Ethernet power supply interface detection.

9. The detection method according to claim 1, characterized in that: The sending of the query echo command to the product includes: sending an instruction to the DFT process of the product.

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