Non-contact testing system for ethernet poe powered devices
Patent Information
- Application Number
- CN202522193898.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-16
AI Technical Summary
然而，在制造商对受电设备(如IP电话、摄像头等)进行批量测试时，传统上需通过金属探针直接连接以传输信号和电力，这会导致探针的大量损耗，同时因频繁查找故障探针和更换部件而增加额外成本
[0020]本实用新型的有益效果在于：本实用新型提供的以太网PoE受电设备的非接触式测试系统，利用PoE_PD控制器、无线供电模块、无线数据传输模块以及PoE_PSE+以太网变压器模块，分别构建无线传输的供电传电链路以及无线传输的数据链路，能够实现以非接触的方式为被测受电设备提供符合以太网PoE标准的数据信号和电源信号，替换传统测试系统的金属探针连接测试方式，具有无物理损伤、大幅提升测试效率、更低维护成本以及更高实用性等优点。
Smart Images
Figure CN224923735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of Ethernet PoE technology, specifically to a non-contact testing system for Ethernet PoE powered devices. Background Technology
[0002] Power over Ethernet (PoE) technology integrates data and power transmission, eliminating the need for a separate power supply, significantly simplifying the installation process and reducing cabling clutter. These advantages have collectively driven the widespread adoption of PoE technology. However, when manufacturers conduct batch testing of powered devices (such as IP phones and cameras), they traditionally rely on direct connections via metal probes to transmit signals and power. This leads to significant probe wear and increased costs due to frequent troubleshooting and component replacement.
[0003] To address this issue, the technical solution proposed in this invention employs a non-contact method, providing data signals and power supply conforming to the Ethernet PoE standard to the device under test without relying on a physical connection. This solution is not only suitable for mass production testing of PoE devices such as cameras, but can also be extended to other PoE application scenarios requiring electrical isolation, demonstrating high practicality and promotional value. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a non-contact testing system for Ethernet PoE powered devices, which can provide data signals and power supply conforming to the Ethernet PoE standard to the PoE powered device under test in a non-contact manner, effectively avoiding the loss and inconvenience caused by direct contact connection.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A non-contact testing system for Ethernet PoE powered devices includes: a switch, an Ethernet transformer, a PoE_PD controller, a wireless power supply module, a wireless data transmission module, and a PoE_PSE+ Ethernet transformer module.
[0007] The output of the switch is connected to the PoE_PD controller and the wireless data transmission module via the Ethernet transformer; the PoE_PD controller is connected to the wireless data transmission module and the wireless power supply module; the output of the wireless power supply module and the output of the wireless data transmission module are connected to the PoE_PSE+ Ethernet transformer module; the output of the PoE_PSE+ Ethernet transformer module is connected to the device under test.
[0008] Optionally, the wireless power supply module includes a wireless power supply transmitter and a wireless power supply receiver; the wireless data transmission module includes a wireless data transmission transmitter and a wireless data transmission receiver.
[0009] The wireless power supply transmitter is connected to the PoE_PD controller; the wireless power supply receiver is connected to both the wireless data receiver and the PoE_PSE+ Ethernet transformer module.
[0010] The wireless data transmission transmitter is connected to the Ethernet transformer; the wireless data transmission receiver is connected to the PoE_PSE+ Ethernet transformer module.
[0011] Optionally, the wireless data transmission module is a wireless data transmission chip.
[0012] Optionally, the wireless power supply module is a wireless power supply chip.
[0013] Optionally, the wireless data transmission module is a millimeter-wave isolated transmission module, a capacitive isolated transmission module, or a magnetically isolated transmission module.
[0014] Optionally, the millimeter-wave isolated transmission module is a millimeter-wave isolated transmission chip.
[0015] Optionally, the switch integrates a PoE_PSE controller and a PHY chip; the PoE_PSE controller outputs a power signal to the Ethernet transformer; and the PHY chip outputs a data signal to the Ethernet transformer.
[0016] Optionally, the PoE_PSE+ Ethernet transformer module integrates a PoE_PSE, an Ethernet transformer, and a PHY chip.
[0017] The output of the wireless power supply module is connected to the Ethernet transformer in the PoE_PSE+Ethernet transformer module via the PoE_PSE; the output of the wireless data transmission module is connected to the Ethernet transformer in the PoE_PSE+Ethernet transformer module via the PHY chip.
[0018] Optionally, the output of the PoE_PSE+ Ethernet transformer module is an RJ45 interface.
[0019] Optionally, the connection line between the PoE_PD controller and the wireless data transmission module is a 3.3V power supply line; the connection line between the wireless power supply receiver and the wireless data receiver is a 3.3V power supply line; and the connection line between the wireless power supply receiver and the PoE_PSE+ Ethernet transformer module is a 44-57V power supply line.
[0020] The beneficial effects of this utility model are as follows: The non-contact testing system for Ethernet PoE powered devices provided by this utility model utilizes a PoE_PD controller, a wireless power supply module, a wireless data transmission module, and a PoE_PSE+ Ethernet transformer module to construct wireless power transmission links and wireless data transmission links, respectively. It can provide data signals and power signals conforming to the Ethernet PoE standard to the powered device under test in a non-contact manner, replacing the metal probe connection testing method of the traditional testing system. It has the advantages of no physical damage, significantly improved testing efficiency, lower maintenance costs, and higher practicality. Attached Figure Description
[0021] Figure 1 A schematic diagram illustrating the structure and connection of a non-contact testing system for an Ethernet PoE powered device provided by this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the switch described in a specific embodiment of this utility model;
[0023] Figure 3 This is a schematic diagram of the structure of the PoE_PSE+ Ethernet transformer module described in a specific embodiment of this utility model. Detailed Implementation
[0024] To illustrate in detail the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this utility model, the following detailed description is provided in conjunction with the listed specific embodiments and accompanying drawings. The embodiments described herein are merely illustrative of the technical solutions of this utility model and are therefore intended to limit the scope of protection of this utility model.
[0025] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0026] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0027] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.
[0028] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.
[0029] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0030] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0031] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0032] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.
[0033] The most crucial concept of this invention lies in the use of a PoE_PD controller, a wireless power supply module, a wireless data transmission module, and a PoE_PSE+ Ethernet transformer module to construct wireless power transmission links and wireless data transmission links, thereby enabling the provision of data and power signals conforming to the Ethernet PoE standard to the device under test in a non-contact manner.
[0034] Explanation of technical terms involved in this utility model:
[0035] PSE: Power Sourcing Equipment, refers to power supply equipment, such as PoE switches.
[0036] PD stands for Powered Device, which refers to powered devices such as IP phones, wireless access points, and network cameras.
[0037] Ethernet transformers are mainly used to process data signals and achieve electrical isolation (transmitting signals through magnetic coupling, physically isolating the circuitry on the chip side from the circuitry on the network cable side), signal coupling, and impedance matching.
[0038] POE_PD controller: The full name is Power over Ethernet Powered Device Interface Controller, which is an Ethernet-powered device interface controller chip. It can be understood as an "intelligent power management brain" designed specifically for powered devices. It enables powered devices such as IP phones, wireless APs, and network cameras to receive power safely and intelligently through the network cable and provides them with a stable and appropriate operating voltage. It is an indispensable core component of any PoE powered device.
[0039] The POE_PSE controller is responsible for power management and control, acting as the "intelligent steward" and "brain" of the power system. Its functions include detection (periodically sending a low-voltage probe signal to the port to detect whether the other end is connected to a power receiving device that conforms to the IEEE standard), classification (after passing the detection, determining the power level required by the power receiving device so that the switch can intelligently allocate the total power budget to avoid overload), and power supply & monitoring (continuously monitoring current, voltage, and temperature during power supply).
[0040] PHY chip: This is a physical layer chip responsible for the digital-to-analog conversion of data. It can convert digital signals into analog differential signals that can be transmitted over network cables (transmitting path) and vice versa (receiving path).
[0041] Figure 1 This utility model provides a schematic diagram of the structure and connection of a non-contact testing system for Ethernet PoE powered devices.
[0042] like Figure 1 As shown, this utility model provides a non-contact testing system for Ethernet PoE powered devices, including: a switch, an Ethernet transformer, a PoE_PD controller, a wireless power supply module, a wireless data transmission module, and a PoE_PSE+ Ethernet transformer module.
[0043] The output of the switch is connected to the PoE_PD controller and the wireless data transmission module via the Ethernet transformer; the PoE_PD controller is connected to the wireless data transmission module and the wireless power supply module; the output of the wireless power supply module and the output of the wireless data transmission module are connected to the PoE_PSE+ Ethernet transformer module; the output of the PoE_PSE+ Ethernet transformer module is connected to the device under test.
[0044] The non-contact testing system for Ethernet PoE powered devices provided in this embodiment works on the following principle:
[0045] The switch is connected to both AC power and a host computer (such as a PC), acquiring power and data inputs respectively. The switch outputs PoE (data + power) conforming to the Ethernet standard to a standard Ethernet transformer. The Ethernet transformer securely transmits the power signal to the PoE_PD controller via its "center tap," and securely transmits the data signal to the wireless data transmission module via electrically isolated coupling. The wireless data transmission module then transmits the received data signal wirelessly to the PoE_PSE + Ethernet transformer module. The PoE_PD controller will... The received power signal is processed by DC-DC conversion and then split into two outputs. One output is sent to the wireless data transmission module to provide it with a stable and suitable operating voltage (such as 3.3V, 5V, 12V, etc.), and the other outputs PoE power to the wireless power supply module (such as 44-57V). The wireless power supply module transmits the received power signal to the PoE_PSE+ Ethernet transformer module via wireless power transmission. The PoE_PSE+ Ethernet transformer module integrates the received data signal and power signal, and then outputs standard Ethernet PoE (data + power) to the device under test.
[0046] In some specific embodiments, the wireless power supply module includes a wireless power supply transmitter and a wireless power supply receiver; the wireless data transmission module includes a wireless data transmission transmitter and a wireless data transmission receiver.
[0047] The wireless power supply transmitter is connected to the PoE_PD controller; the wireless power supply receiver is connected to both the wireless data receiver and the PoE_PSE+ Ethernet transformer module; the wireless data transmission transmitter is connected to the Ethernet transformer; and the wireless data transmission receiver is connected to the PoE_PSE+ Ethernet transformer module.
[0048] Here, after receiving the power signal output by the PoE_PD controller, the wireless power supply transmitter transmits the power signal to the wireless power supply receiver via wireless power transmission. The wireless power supply receiver splits the received power signal into two paths: one path is output to the wireless data transmission receiver to provide it with a stable and suitable operating voltage (such as 3.3V, 5V, 12V, etc.), and the other path outputs the PoE power to the PoE_PSE+ Ethernet transformer module (such as 44-57V).
[0049] The wireless data transmission transmitter receives the data signal sent by the Ethernet transformer and transmits it wirelessly to the wireless data transmission receiver in an isolated manner; the wireless data transmission receiver then transmits the received data information to the PoE_PSE+ Ethernet transformer module.
[0050] In some specific embodiments, the wireless data transmission module is a wireless data transmission chip. Correspondingly, the wireless power supply module preferably also uses a wireless power supply chip.
[0051] Here, the wireless data transmission module and / or the wireless power supply module employ an integrated chip design, which not only significantly improves the performance of data transmission and / or power transmission, but also enhances reliability; moreover, the cost, size, and power consumption of the modules can be optimized. This achieves an overall improvement in the test system in terms of miniaturization, low cost, energy efficiency, reliability, and performance.
[0052] For example, the wireless power supply module may be an electromagnetic induction wireless power supply module, a magnetic resonance wireless power supply module, a radio wave wireless power supply module, or an electric field coupling power supply module.
[0053] Here, the wireless power supply module can be implemented using a variety of wireless power transmission methods, allowing manufacturers to flexibly select the appropriate module based on factors such as power transmission efficiency, power, and cost, thereby better meeting user needs.
[0054] For example, the wireless data transmission module can be a millimeter-wave isolated transmission module, a capacitive isolated transmission module, or a magnetically isolated transmission module.
[0055] Here, the wireless data transmission module can be implemented using a variety of wireless isolation transmission methods, all of which have the security and reliability of data signal transmission, can meet diverse needs, and have higher versatility.
[0056] Preferably, the wireless data transmission module is designed as a millimeter-wave isolated transmission module. More preferably, it is implemented using a millimeter-wave isolated transmission chip.
[0057] Here, the data signals in the test system are wirelessly isolated and transmitted based on millimeter-wave isolated communication technology. This fully utilizes the advantages of not requiring external connectors / connection cables, small millimeter-wave carrier antennas, and high security and reliability of non-contact embedded antenna transmission isolation. Within the test system, the data signals from the PoE output by the switch are transmitted to the PoE_PSE+ Ethernet transformer module at high speed, with extremely low latency and high isolation. This helps ensure that the Ethernet PoE provided to the PoE receiving device under test in conjunction with the wireless power supply link is more in line with the test standards.
[0058] In some specific implementations, the output of the PoE_PSE+ Ethernet transformer module is an RJ45 interface.
[0059] In this embodiment, the test system only needs to connect to the PoE device under test through one interface, such as an RJ45 interface, to provide it with Ethernet PoE that meets the test standards. This not only replaces the metal probe connection method of the traditional test system, avoiding the inconvenience caused by too many test probes, but also only requires one interface connection to test the PoE device under test, greatly simplifying the interface connection, making it more universal, and more suitable for batch testing scenarios.
[0060] Figure 2 This is a schematic diagram of the structure of the switch described in a specific embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of the PoE_PSE+ Ethernet transformer module described in a specific embodiment of this utility model.
[0061] Please see Figure 2 and Figure 3 At the same time, combined Figure 1 The non-contact testing system for Ethernet PoE powered devices provided in the above embodiments will be further described in detail below through some specific implementation methods.
[0062] In some specific implementations, such as Figure 2 As shown, the switch integrates a PoE_PSE controller and a PHY chip; the PoE_PSE controller outputs power signals to the Ethernet transformer; the PHY chip outputs data signals to the Ethernet transformer.
[0063] Here, the switch will only output a power signal through the PoE_PSE controller after the PoE_PD controller in the test system and the PoE_PSE controller in the switch have successfully communicated and handed over the signal. This ensures the safety of the power supply output of the test system.
[0064] In some specific implementations, such as Figure 3 As shown, the PoE_PSE+Ethernet transformer module integrates a PoE_PSE, an Ethernet transformer, and a PHY chip; wherein, the output of the wireless power supply module is connected to the Ethernet transformer in the PoE_PSE+Ethernet transformer module via the PoE_PSE; the output of the wireless data transmission module is connected to the Ethernet transformer in the PoE_PSE+Ethernet transformer module via the PHY chip in the PoE_PSE+Ethernet transformer module.
[0065] The working principle of the PoE_PSE+ Ethernet transformer module based on the above structure is as follows:
[0066] After receiving the power signal output from the wireless power supply module, the PoE_PSE controls the output of a portion of the power to the PHY chip to provide the voltage required for its operation, and controls the output of another portion of the power (44-57V) to the Ethernet transformer. After receiving the digital data signal from the switch output by the wireless data transmission module, the PHY chip converts it into an analog differential signal that can be transmitted over the network cable. The Ethernet transformer receives the power signal from the PoE_PSE and the analog differential signal from the PHY chip and integrates them into a standard Ethernet PoE (data + power) output.
[0067] For example, the connection line between the PoE_PD controller and the wireless data transmission module is a 3.3V power supply line; the connection line between the wireless power supply receiver and the wireless data receiver is a 3.3V power supply line; the connection line between the wireless power supply receiver and the PoE_PSE+ Ethernet transformer module is a 44-57V power supply line; and the connection line between the wireless data receiver and the PoE_PSE+ Ethernet transformer module is a data line.
[0068] In summary, the non-contact testing system for Ethernet PoE powered devices provided by this utility model utilizes a PoE_PD controller, a wireless power supply module, a wireless data transmission module, and a PoE_PSE+ Ethernet transformer module to construct a wireless power transmission link and a millimeter-wave isolated data transmission link, respectively. This enables the non-contact provision of data and power signals compliant with the Ethernet PoE standard to the powered device under test, replacing the traditional metal probe connection testing method. It has advantages such as no physical damage, significantly improved testing efficiency, lower maintenance costs, and higher practicality.
[0069] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A non-contact testing system for Ethernet PoE powered devices, characterized in that, include: Switches, Ethernet transformers, PoE_PD controllers, wireless power supply modules, wireless data transmission modules, and PoE_PSE+ Ethernet transformer modules; The output of the switch is connected to the PoE_PD controller and the wireless data transmission module via the Ethernet transformer; the PoE_PD controller is connected to the wireless data transmission module and the wireless power supply module; the output of the wireless power supply module and the output of the wireless data transmission module are connected to the PoE_PSE+ Ethernet transformer module; the output of the PoE_PSE+ Ethernet transformer module is connected to the device under test.
2. The non-contact testing system for Ethernet PoE powered devices as described in claim 1, characterized in that, The wireless power supply module includes a wireless power supply transmitter and a wireless power supply receiver; the wireless data transmission module includes a wireless data transmission transmitter and a wireless data transmission receiver. The wireless power supply transmitter is connected to the PoE_PD controller; the wireless power supply receiver is connected to both the wireless data transmission receiver and the PoE_PSE+ Ethernet transformer module. The wireless data transmission transmitter is connected to the Ethernet transformer; the wireless data transmission receiver is connected to the PoE_PSE+ Ethernet transformer module.
3. The non-contact testing system for Ethernet PoE powered devices as described in claim 2, characterized in that, The wireless data transmission module is a wireless data transmission chip.
4. The non-contact testing system for Ethernet PoE powered devices as described in claim 2, characterized in that, The wireless power supply module is a wireless power supply chip.
5. The non-contact testing system for Ethernet PoE powered devices as described in claim 1, characterized in that, The wireless data transmission module is a millimeter-wave isolated transmission module, a capacitive isolated transmission module, or a magnetically coupled isolated transmission module.
6. The non-contact testing system for Ethernet PoE powered devices as described in claim 5, characterized in that, The millimeter-wave isolated transmission module is a millimeter-wave isolated transmission chip.
7. The non-contact testing system for Ethernet PoE powered devices as described in claim 1, characterized in that, The switch integrates a PoE_PSE controller and a PHY chip; the PoE_PSE controller outputs a power signal to the Ethernet transformer; the PHY chip outputs a data signal to the Ethernet transformer.
8. The non-contact testing system for Ethernet PoE powered devices as described in claim 1, characterized in that, The PoE_PSE+ Ethernet transformer module integrates a PoE_PSE, an Ethernet transformer, and a PHY chip. The output of the wireless power supply module is connected to the Ethernet transformer in the PoE_PSE+Ethernet transformer module via the PoE_PSE; the output of the wireless data transmission module is connected to the Ethernet transformer in the PoE_PSE+Ethernet transformer module via the PHY chip.
9. The non-contact testing system for Ethernet PoE powered devices as described in claim 1, characterized in that, The output of the PoE_PSE+ Ethernet transformer module is an RJ45 interface.
10. The non-contact testing system for Ethernet PoE powered devices as described in claim 2, characterized in that, The connection line between the PoE_PD controller and the wireless data transmission module is a 3.3V power supply line; the connection line between the wireless power supply receiver and the wireless data transmission receiver is a 3.3V power supply line; and the connection line between the wireless power supply receiver and the PoE_PSE+ Ethernet transformer module is a 44-57V power supply line.