Network cable insertion detection device

Abstract

The utility model discloses a network cable insertion detection device, including a network card chip and a processor, the processor is connected to the network card chip and the network cable, a pull-up resistor is connected along the way of connecting the network cable and the processor, and one end of the pull-up resistor is connected to a power supply. The utility model proposes an easy-to-use, low-cost network cable insertion detection device, which aims to avoid the cost increase caused by customizing the network port, and at the same time avoid the power consumption loss caused by the network cable being inserted into the network port seat but not connected to a router and other equipment, thereby reducing the power consumption of the equipment and improving the endurance of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of communication equipment, in particular to a network cable insertion detection device. Background Art

[0002] With the development of Internet communication technology, network communication technology has been widely used in products such as handheld mobile terminals (PDAs) and embedded industrial control boards. These devices are usually small in size and battery-powered, and have strict requirements on standby current and power consumption. Since the power consumption of the Ethernet network card is greatly different when it is turned on or not, it is necessary to control the opening and closing of the Ethernet network card according to whether a network cable is inserted into the network port to reduce power consumption. The commonly used method is to add additional pins or other switch devices to the network port through a customized RJ45 network port socket. When the network cable is inserted, the contact state of the switch device is changed to determine whether the network cable is inserted into the network port.

[0003] The invention patent "A method, device and terminal for detecting network port insertion" with publication number CN106294057A discloses a method for detecting network port insertion: two pins PinA and PinB are added to the general network port, and two springs are added to the inner side wall of the network port. The springs are defined as spring A and spring B, and spring A and spring B are connected to PinA and PinB respectively. When the network cable is inserted into the network port, spring A and spring B will be squeezed to contact. When the network cable is pulled out, spring A will recover, and spring A and spring B will be disconnected. In this way, the on-off state of PinA and PinB will change before and after the network cable is inserted, so as to determine whether the network cable is inserted into the network port. This method of automatically detecting the connection status of the Ethernet network interface requires a new mold because the designed network port is different from the common network ports on the market, which incurs mold opening fees and increases product costs. In addition, the network port can only determine whether the network cable is physically inserted but cannot confirm whether the network cable is connected to the router. If the network cable is only inserted into the device but not connected to the router, the device will think that the network cable is connected and turn on chips such as the network card, resulting in increased power consumption. Utility Model Content

[0004] In order to solve the defects in the prior art, the utility model provides a network cable insertion detection device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a network cable insertion detection device, which comprises a network card chip and a processor. The processor is connected with the network card chip and the network cable. A pull-up resistor is connected along the way of connecting the network cable and the processor, and one end of the pull-up resistor is connected with a power supply.

[0007] As a preferred technical solution of the utility model, it also includes an Ethernet switch IC, and the processor is connected to the Ethernet switch IC through a control line.

[0008] As a preferred technical solution of the present utility model, the processor model is: UMS9620.

[0009] As a preferred technical solution of the present utility model, the detection device is a handheld device.

[0010] As a preferred technical solution of the utility model, the router / optical modem has its own network transformer to provide a second network port connected to the first network port and the network card chip.

[0011] The beneficial effects of the utility model are:

[0012] The utility model proposes an easy-to-use, low-cost device for detecting network cable insertion, which aims to avoid the cost increase caused by customizing the network port, and at the same time avoid the power consumption loss caused by the network cable being inserted into the network port socket but not connected to a router and other devices, thereby reducing the power consumption of the device and improving the endurance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is the processor pin diagram. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0017] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", "top", "bottom" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] Example: Figure 1 As shown, it includes a network card chip and a processor. The processor is connected to the network card chip and a network cable. A pull-up resistor is connected along the way between the network cable and the processor. One end of the pull-up resistor is connected to a power supply. It also includes an Ethernet switch IC. The processor is connected to the Ethernet switch IC through a control line.

[0019] There is a pull-up resistor on the path connecting the Ethernet switch chip and the processor, and the pull-up resistor is connected to the power supply, so that the path connecting the Ethernet switch and the processor is in a high level state when the network cable is not inserted; the network port establishes a connection with the network card chip through the network transformer; the Ethernet switch chip switches the path connected to the network cable or the processor; the network card chip realizes data transmission and communication between the router and the processor; the processor determines whether the network cable is inserted by confirming the level state of the path connected to the Ethernet switch chip.

[0020] The processor uses a chip of model: UMS9620. The network card chip can be a network card chip of a conventional handheld device, such as a PHY network chip.

[0021] The present invention uses a processor to confirm the insertion state of a network cable, and controls the switching of an Ethernet switch, and simultaneously turns on a network card chip to achieve Ethernet connection. A pull-up resistor is provided on the path connecting the Ethernet switch chip and the processor, and the pull-up resistor is connected to a power supply. When the network cable is not connected, the level of the path is always in a pulled-up state, and the processor confirms that no network cable is inserted; when the network cable connected to the router is inserted, the level on the path between the Ethernet switch and the processor will be pulled down, thereby generating an interrupt signal, and the processor confirms the insertion of the network cable through the interrupt signal, switches the Ethernet switch path to the network transformer, and turns on the network card at the same time, so that the device is connected to the router through the network cable; when the network cable not connected to the router is inserted, the level on the path between the Ethernet switch and the processor is always in a pulled-up state, and the above-mentioned interrupt signal will not be generated on the path, and the processor confirms that no network cable connected to the router is inserted.

[0022] The solution of this embodiment can be perfectly compatible with standard network ports, without the need to customize network ports, and avoid mold opening costs. It can accurately determine whether the other end of the network cable is connected to a router or other device, preventing the network cable from being inserted but not connected to the router, and the Ethernet function being normally turned on, causing power consumption, which helps to improve the battery life of the product.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A network cable insertion detection device, characterized in that: It includes a network card chip and a processor. The processor is connected to the network card chip and a network cable. A pull-up resistor is connected along the way between the network cable and the processor, and one end of the pull-up resistor is connected to a power supply.

2. A network cable insertion detection device according to claim 1, characterized in that: The device also includes an Ethernet switch IC, and the processor is connected to the Ethernet switch IC via a control line.

3. A network cable insertion detection device according to claim 2, characterized in that: The processor model is: UMS9620.

4. A network cable insertion detection device according to claim 1, characterized in that: The network cable is used to connect the router / optical modem.

5. A network cable insertion detection device according to claim 1, characterized in that: The detection device is a handheld device.

6. A network cable insertion detection device according to claim 4, characterized in that: The router / optical modem has its own network transformer that provides a second network port that is connected to the first network port and the network card chip.

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