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A method for estimating the number of rfid devices

A technology of equipment and quantity, applied in the field of card reading equipment and computer-readable storage medium, and the estimation of the number of RFID equipment, can solve the problems of low accuracy and poor applicability, and achieve the effect of overcoming technical defects and accurate and efficient estimation

Active Publication Date: 2022-08-02
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current method of estimating the number of RFID devices is to manually determine the value of an RFID device based on experience. This way of artificially setting the number of RFID devices is often affected by human factors, and its accuracy is low and its applicability is poor.

Method used

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  • A method for estimating the number of rfid devices
  • A method for estimating the number of rfid devices
  • A method for estimating the number of rfid devices

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Embodiment Construction

[0035] The core of the application is to provide a method for estimating the number of RFID devices, which can accurately and efficiently estimate the number of RFID devices; another core of the application is to provide a card reading device and a computer-readable storage medium, both of which have the above technical effects .

[0036] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection range of the present application.

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Abstract

The present application discloses a method for estimating the number of RFID devices, including a card reader device determining a reference value and sending the reference value to each RFID device, so that the RFID device respectively generates any random random number within the estimated interval with the upper limit of the reference value. The card reader polls each integer in the estimated interval and sends the integer to each RFID device, so that the RFID device responds according to the random number generated by itself and the received integer; the card reader The response message performs parameter statistics, and after traversing the integers in the estimated interval, the number of RFID devices is calculated according to the statistical parameters and reference values. The estimation method can effectively overcome the defects of manually setting the number of RFID devices, and can estimate the number of RFID devices accurately and efficiently. The present application also discloses a card reading device and a computer-readable storage medium, both of which have the above technical effects.

Description

technical field [0001] The present application relates to the technical field of the Internet of Things, and in particular, to a method for estimating the number of RFID devices; it also relates to a card reading device and a computer-readable storage medium. Background technique [0002] With the continuous development of the Internet of Things, RFID devices are widely used. The card reader can only select a specific RFID device for communication each time. In practical applications, there are usually multiple RFID devices in the radio frequency field of the card reader. At this time, the card reader receives the data sent by each RFID device, resulting in The data sent by each RFID device collides, so that the card reader device cannot receive the data correctly and effectively. Therefore, the card reader device needs to select one of the RFID devices to communicate with to prevent collision. At present, there are various and different anti-collision schemes, such as spa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10
CPCG06K7/10198
Inventor 杨祎巍匡晓云林伟斌
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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