Method and device for searching card reader

A card reader and identification card technology, applied in the field of search card readers, can solve the problems of high power consumption of the identification card and the card reader, failure to receive the identification card, low positioning efficiency, etc., so as to improve the search efficiency and reduce the communication conflict. , the effect of reducing power consumption

CN107423649BActive Publication Date: 2020-05-12辽宁瑞华实业集团高新科技有限公司
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-05-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method and a device for searching a card reader. The method comprises: sending a broadcast frame with first address information recorded by an address information table, to make one or more card readers whose address information is different from first address information respond to the broadcast frame and send a reply frame; in first threshold time, receiving the reply frame sent by the one or more card readers in sequence, wherein the reply frame includes the address information of the card reader; recording the address information of the card reader in the address information table. The method and the device for searching card reader can reduce communication conflict, improve efficiency of searching the card reader, and reduce power consumption of an identification card and the card reader.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present disclosure relates to the technical field of communication, and in particular to a method and device for searching a card reader. Background technique

[0002] As we all know, the positioning of coal miners working in coal mines is very important. Accurate positioning can improve the safety of coal miners. At present, SDS-TWR (Symmetrical Double-Sided Two Way Ranging, Symmetrical Double-Sided Two Way Ranging, Bilateral ranging technology) to improve positioning accuracy.

[0003] When realizing positioning based on SDS-TWR technology, the identification cards carried by coal miners need to communicate wirelessly with one or more designated card readers. Before the identification card communicates with the card reader, it first obtains the wireless address information of the card reader, and then communicates to measure the distance one by one to realize positioning.

[0004] In order to obtain the wireless address information of the card ...

Examples

Embodiment 1

[0054] figure 1 A flowchart showing a method for searching a card reader according to an embodiment of the present disclosure. The method can be applied to identification cards such as figure 1 As shown, the method for searching for a card reader may include:

[0055] Step 101, sending a broadcast frame carrying the first address information recorded in the address information table, so that one or more card readers whose address information is different from the first address information sends a reply frame in response to the broadcast frame;

[0056] The identification card may be a device for positioning. Taking the identification card carried by the staff in the mine as an example, the identification card may be used to locate the mine staff.

[0057] figure 2 A schematic diagram showing an application scenario of a method for searching for a card reader according to an embodiment of the present disclosure.

[0058]Wherein, the above-mentioned first address informatio...

Embodiment 2

[0077] Figure 5 A flow chart showing a method for searching a card reader according to an embodiment of the present disclosure, the method can be applied to a card reader, such as Figure 5 As shown, the method for searching for a card reader may include:

[0078] Step 501, receiving the broadcast frame sent by the identification card;

[0079] The card reader may be a device for positioning. Taking a card reader installed in a mine as an example, the card reader may be used to locate mine workers.

[0080] In an example, the above broadcast frame may be a request frame sent by the identification card for the address information of the card reader. After receiving the broadcast frame, the card reader may feed back the address of the card reader to the identification card according to the broadcast frame. Information, for example: the card reader sends a reply frame carrying the address information of the card reader to the identification card. Wherein, the card reader can ...

Embodiment 3

[0087] Image 6 It is a block diagram of a device 600 for searching a card reader according to an exemplary embodiment, including: a first sending module 601, a first receiving module 602 and a recording module 603; wherein,

[0088] The first sending module 601 may be configured to send a broadcast frame carrying the first address information recorded in the address information table, so that one or more card readers whose address information is different from the first address information respond to the broadcast frame send reply frame;

[0089] The first receiving module 602 may be configured to sequentially receive reply frames sent from the one or more card readers within a first threshold time, wherein the reply frames include address information of the card readers;

[0090] The recording module 603 may be configured to record the address information of the card reader in the address information table.

[0091] refer to Figure 7 , shows a block diagram of an apparat...