POE switch testing device and detection method thereof

Abstract

The invention provides a POE switch testing device and a detection method thereof. The POE switch testing device comprises a temperature and humidity adjusting box; a POE switch system disposed in the temperature and humidity adjusting box; a POE system detection tool module connected with the POE switch system, arranged outside the temperature and humidity adjusting box, and used for detecting the power supply function of the POE switch system; an IP network camera connected with the POE switch system and arranged outside the temperature and humidity adjusting box; a temperature acquisition module connected with the POE switch system and used for detecting the temperature rise state of the POE switch system; and a PC arranged outside the temperature and humidity adjusting box, connected with the POE system detection tool module and used for detecting the data packet transmitting and receiving function of the POE switch system. The POE switch testing device solves the defects and the abuses of a conventional detection system using single AC voltage and power frequency by using different AC voltage and power frequency according to users at different regions.

Description

technical field [0001] The invention relates to the technical field of wireless local area networks, in particular to a POE switch testing device and a testing method thereof. Background technique [0002] The Institute of Electrical and Electronics Engineers IEEE approved the Power over Ethernet POE standard (IEEE802.3af) in June 2003. How devices such as phones, security systems, and wireless LAN access points are powered is specified. The development of IEEE802.3af includes the efforts of many company experts, which also makes the standard can be tested in various aspects. [0003] POE (PowerOverEthernet, Power Over Ethernet), POE power supply refers to the existing Ethernet CAT-5 wiring infrastructure, without any changes, using a conventional Ethernet cable to transmit data while supplying power , so as to ensure that the cable can provide DC power supply for such devices while transmitting data signals for Ethernet terminal devices such as IP phones, wireless LAN acc...

AI Technical Summary

Problems solved by technology

[0007] ①The current POE network power supply on the market lacks flexibility, mainly in the fact that the DC voltage has been unified and fixed, and cannot be freely adjusted or selected. The functions of the POE network power supply are relatively single, and there is no room for selection and expansion of the DC voltage;

[0008] ②In the environmental reliability test of the POE module, use a fixed ambient temperature and humidity environment for testing. For example, it is only required to test in an environment with a normal temperature of 25°C, but not in an environment with a high temperature of 55°C or a low temperature of -10°C. , there is a problem of incomplete detection coverage, ignoring that the usage scenario of the POE switch system is a dynamically changing environment at the user end

In addition, the key components of the POE switch system, such as the main chip, power chip, SDRAM, Flash chip, crystal oscillator, etc., are more sensitive to the requirements of ambient temperature and humidity. Work may cause changes and declines in system performance due to changes in device parameters, resulting in abnormal operation of the whole system;

[0009] ③ Existing detection technology lacks the measurement of the heat dissipation performance of system components, lower body cover, upper body cover, DC input terminal, PCB, and adapter PCB when detecting the heat dissipation performance of the POE switch system

The national mandatory regulations GB4349.1-2011 (Information Technology Equipment Safety) have formulated standards in this regard, requiring the system to work and operate in a normal temperature environment. The PCB temperature of the system is not allowed to exceed 110°C, and the surface temperature of the chassis and other key components The temperature is not allowed to exceed 85°C, but the existing detection methods are not very good at monitoring the working temperature of the system. Everyone only pays attention to whether the POE switch system is working normally, and ignores the burn-in problem caused by the system temperature exceeding the standard;

[0010] ④ The POE switch system is suitable for the power supply range of AC voltage 100-240VAC ~ 50 / 60Hz, but the existing detection methods of POE switch systems only use 220V / 50Hz power supply for detection, and do not cover various AC voltages, different power frequencies

When the POE switch system is running all its performances, if the AC voltage is high or low, it may affect the failure and decline of the electrical performance of the POE switch system.

The power supply regulations and standards have clearly stipulated the AC voltage and power frequency used in different countries and regions. For example, the American power supply standard is AC120V / 60Hz, the Chinese power supply standard is AC220V / 50Hz, the Japanese power supply standard is AC100V / 50Hz, and the EU power supply standard is AC100V / 50Hz. AC230V / 50Hz, Australian power supply standard is AC240V / 50Hz, Taiwan power supply standard is AC110V / 60Hz, Korean power supply standard is AC220V / 60Hz, so the existing detection methods of the current POE switch system have incomplete test coverage and cannot test the system well It is used for the electrical performance of various AC voltages and various power frequencies, and omits the monitoring of the reliability and stability of electrical performance

If the POE switch system is burned due to poor electrical performance, power-on and power-off, configuration loss, system restart, and crash, it will seriously affect the normal use and personal safety of the user terminal.

In addition, bad defects will also cause major economic losses to the production company and produce bad reputation and brand image

[0011] The above points are the defects and disadvantages of the existing POE switch system detection method, which cannot better and comprehensively detect the electrical performance of the POE switch system, the environmental reliability performance, the temperature performance of the whole system, and the POE carrying Ethernet service performance.

The existing detection methods either only detect the indicators of a certain function in the system, or only detect the indicators of a certain module in the system. This serial detection method cannot better explore system compatibility issues. It will also lead to prolongation of the detection cycle, affecting product development progress and system detection efficiency

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