CN114881187B - Passive radio frequency sensing tag and step counting method - Google Patents
Passive radio frequency sensing tag and step counting method Download PDFInfo
- Publication number
- CN114881187B CN114881187B CN202210563730.7A CN202210563730A CN114881187B CN 114881187 B CN114881187 B CN 114881187B CN 202210563730 A CN202210563730 A CN 202210563730A CN 114881187 B CN114881187 B CN 114881187B
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- walking
- passive radio
- state
- tag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0025—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to a passive radio frequency sensing tag and a step counting method. The step counting method uses the passive radio frequency sensing tag to be matched with readers uniformly arranged in places, and can accurately count steps of walking objects walking in places. The advantage is that passive radio frequency tag, vibrations sensing switch and the setting of specific reader three-dimensional planning combine can realize the more accurate meter step function in the fixed space, need not other power consumption modules such as GPS. The device has small volume and low energy consumption, can directly acquire the radio frequency energy emitted by the reader through the radio frequency antenna circuit as a working power supply, does not need to set an independent power supply, does not need to replace a battery or charge, and has low cost and convenient use.
Description
Technical Field
The invention belongs to the technical field of radio frequency tags, and particularly relates to a passive radio frequency sensing tag and a step counting method.
Background
An electronic tag, i.e., an RFID tag, is a non-contact automatic identification technology that identifies a target object by a radio frequency signal and acquires related data. The basic working principle of the RFID technology is not complex, and for a passive radio frequency tag, after the passive radio frequency tag enters a magnetic field emitted by a reader, the passive radio frequency tag receives a radio frequency signal emitted by the reader, and the product information stored in a chip is emitted by means of energy obtained by induced current, so that the reader can receive the information.
The electronic pedometer mainly comprises a vibration sensing switch and an electronic counter, and the gravity center of a person needs to move up and down a little when walking, so that the up-and-down displacement of the waist is most obvious, and therefore, the pedometer is most suitable to be hung on a waistband. The traditional electronic pedometer is active, namely, the electronic pedometer is self-charged, after electricity consumption in the battery is finished, the electronic pedometer loses the step counting function, the existing electronic pedometer is high in energy consumption, particularly, in order to count steps more accurately, the existing electronic pedometer is generally provided with more electricity utilization components such as GPS positioning indicating the travelling direction and the path, a gyroscope and the like, so that the electronic pedometer needs to be maintained for replacing the battery or charging after a period of time, and for some specific use scenes (such as when the electronic pedometer is worn for animals in the housing), the battery or charging is inconvenient, and improvement is needed.
Disclosure of Invention
The invention aims to solve the technical problems of high cost, high energy consumption, difficult maintenance and the like of a traditional pedometer in the prior art by providing a passive radio frequency sensing tag and a step counting method.
The technical scheme for solving the technical problems is as follows: the utility model provides a passive radio frequency sensing label, its includes radio frequency chip, detection circuit, radio frequency antenna circuit and vibrations sensing switch, the radio frequency antenna circuit with the radio frequency chip electricity is connected, vibrations sensing switch pass through detection circuit with the radio frequency chip electricity is connected, the radio frequency chip can be through detection circuit response vibrations sensing switch break-make electrical state.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the vibration sensing switch is a 2D sensor or a 3D sensor.
The advantage of adopting the further structural improvement is that the 2D vibration sensing switch (vibration sensor) is equivalent to a mechanical switch which generates repeated displacement under the action of continuous vibration to generate on/off actions, namely, the balance of a balance weight is destroyed when the balance weight vibrates up and down so that one contact can generate on/off actions. Compared with the 2D sensor, the 3D vibration sensing switch can sense vibration with sufficient strength in other directions besides up-down vibration, namely, omnibearing inductor vibration, has lower wearing requirement than the 2D sensor, and does not need to be worn in the direction perpendicular to the ground.
The invention also provides a step counting method, which realizes step counting by utilizing the passive radio frequency sensing tag and matching with a plurality of readers, and comprises the following steps: the method comprises the steps that a plurality of readers matched with passive radio frequency sensing tags are uniformly arranged at a place where a walking object is required to step, each reader is connected with a cloud server through signals, the passive radio frequency sensing tags are fixed on the walking object, when the walking object walks in the place, the passive radio frequency sensing tags extract electric energy required by work of the passive radio frequency sensing tags from radio frequency energy sent by at least one reader, a vibration sensing switch is switched between an electrified state and a powered-off state due to the walking action of the walking object, the radio frequency chip senses the powered-on state of the vibration sensing switch through a detection circuit and transmits a powered-off state signal to the cloud server through the readers, and the cloud server analyzes the powered-on state signal received in a period of time to determine the times of switching between the electrified state and the powered-off state, namely the walking number of the walking object.
Specifically, the passive radio frequency sensing tag on the walking object can simultaneously receive radio frequency energy of at least three readers at any position of the place, the positions of the three readers in the place are different, the position information of the passive radio frequency sensing tag at any moment is obtained through an RSSI positioning algorithm, the cloud server analyzes according to the position information and the on-off state signal, the on-off times caused by non-walking are removed, and the accurate walking step number of the walking object is obtained.
The advantage of adopting the further specific scheme is that the false step number generated by false triggering of the vibration sensing switch caused by the non-walking state (for example, the step number generated by triggering of the vibration sensing switch caused by shaking of a human body to a certain extent when the human body sits on a chair for working) can be effectively removed.
Further, the system also comprises a user side in signal connection with the cloud server, and the walking steps of the walking object in a certain time period can be consulted through the user side.
The further specific scheme has the advantage of being convenient for quickly and real-timely consulting the walking steps through terminals such as mobile phones, tablet computers and the like.
Further, the passive radio frequency sensing tag is an ultrahigh frequency radio frequency tag, the working frequency of the passive radio frequency sensing tag is 860-960 MHz, and the effective identification distance between the passive radio frequency sensing tag and a reader is 2-10m.
The advantage of adopting the further specific scheme is that the effective identification distance of the ultrahigh frequency radio frequency tag is relatively large, so that the number of the reader arrangements can be reduced, and the cost is reduced.
Compared with the prior art, the invention has the beneficial effects that:
the invention combines the passive radio frequency tag and the vibration sensing switch to form the radio frequency sensing tag with the step recording function, does not need to be provided with an electronic counter, a GPS (global positioning system) positioner, a gyroscope or the like independently, has low energy consumption, can directly acquire radio frequency energy emitted by a reader through a radio frequency antenna circuit as a working power supply, does not need to be provided with an independent power supply, does not need to replace a battery or maintain charging, and has low cost and convenient use.
According to the step counting method provided by the invention, the reader is matched with the passive radio frequency sensing tag in a mode of arranging the reader at a place where the step counting is required, so that on one hand, energy required by work can be continuously provided for the passive radio frequency sensing tag, and on the other hand, the position information of the passive radio frequency sensing tag at any moment can be obtained through an RSSI positioning algorithm, and therefore, the number of on-off times (namely the number of steps) of the vibration sensing switch caused by non-walking can be effectively filtered during comprehensive treatment, and the accurate step counting function can be ensured under the condition of no GPS positioning or gyroscope orientation.
Drawings
Fig. 1 is a schematic diagram of a passive rf sensing tag according to the present invention;
fig. 2 is a diagram showing a travel path of a cloud server after readers are uniformly arranged in a place and a walking object walks in the place.
In the drawings, the list of components represented by the various numbers is as follows:
1. a radio frequency chip; 2. a detection circuit; 3. a radio frequency antenna circuit; 4. a vibration sensing switch; 5. a walking object; 6. a reader.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings and specific embodiments, the examples being provided for illustration only and not for the purpose of limiting the invention.
In the description of the present invention, if terms indicating orientations such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. are used, the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the indicated devices or elements must have a specific orientation, be configured and operated in the specific orientation, and thus are not to be construed as limiting the present invention.
As shown in fig. 1, in one embodiment of the present invention, a passive radio frequency sensing tag is provided, which includes a radio frequency chip 1, a detection circuit 2, a radio frequency antenna circuit 3, and a vibration sensing switch 4, wherein the radio frequency antenna circuit 3 is electrically connected with the radio frequency chip 1, the vibration sensing switch 4 is electrically connected with the radio frequency chip 1 through the detection circuit 2, and the radio frequency chip 1 can sense the on-off state of the vibration sensing switch 4 through the detection circuit 2. The vibration sensing switch 4 is a 2D sensor or a 3D sensor.
It should be noted that, when it is convenient to wear the vibration sensor switch (vibration sensor) on the walking object in a specific direction (for example, in a direction perpendicular to the ground), a 2D sensor is preferably used, which has a high pertinence to the up-and-down vibration generated by walking, and can automatically filter out the vibration generated by most of non-walking shake or swing, so that the step counting accuracy is higher.
As shown in fig. 2, the present invention further provides a step counting method, which uses the passive rf sensing tag and coordinates with a plurality of readers 6 to realize step counting, including the following contents: a plurality of readers 6 matched with the passive radio frequency sensing tags are uniformly arranged at a place where the walking object 5 is required to step, each reader 6 is in signal connection with a cloud server, the passive radio frequency sensing tags are fixed on the walking object 5, when the walking object 5 walks in the place, the passive radio frequency sensing tags extract electric energy required by work from radio frequency energy sent by at least one reader 6, the vibration sensing switch 4 is switched between an electrified state and a powered-off state due to the walking action of the walking object 5, the radio frequency chip 1 senses the powered-on state of the vibration sensing switch 4 through the detection circuit 2 and transmits a power-on state signal to the cloud server through the readers 6, and the cloud server analyzes the power-on state signal received within a period of time to determine the times of switching of the electrified state and the powered-off state, namely the walking number of steps of the walking object.
The walking object may be a person or an animal, and the specific place where the step counting is required may be a specific sport place (playground, stadium, etc.), a specific office area, a large scale super-business, etc. where the person is, or may be a farm or a farm where the animal is.
In one implementation of the invention, in order to improve the accuracy of step counting, the passive radio frequency sensing tag on the walking object 5 can simultaneously receive radio frequency energy of at least three readers 6 at any position of the place, the positions of the three readers 6 in the place are different, the position information of the passive radio frequency sensing tag at any moment is obtained through an RSSI positioning algorithm, the cloud server analyzes according to the position information and the on-off state signal, the on-off times caused by non-walking are removed, and the accurate step number of walking of the walking object is obtained.
When the passive radio frequency sensing tag is identified by the reader adjacent to the passive radio frequency sensing tag, the distance between the passive radio frequency sensing tag and the reader can be calculated by using an RSSI positioning algorithm, the passive radio frequency sensing tag measures a circle with the distance as a radius by taking the reader as a circle center, and when the number of the readers is three and the readers are not on the same line, the intersection point of the three circles is the current accurate position of the passive radio frequency sensing tag.
In one implementation of the invention, the system further comprises a user side in signal connection with the cloud server, and the walking step number of the walking object in a certain time period can be consulted through the user side.
The user terminal is a mobile phone or a computer and is connected with the cloud server through a wireless network signal.
In one implementation of the present invention, the passive rf sensing tag is an rf tag with an operating frequency of 860-960 MHz, and an effective identification distance between the passive rf sensing tag and the reader 6 is 2-10m.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (3)
1. The step counting method is characterized by using a passive radio frequency sensing tag with a radio frequency chip (1), a detection circuit (2), a radio frequency antenna circuit (3) and a vibration sensing switch (4), and comprises the following steps: a plurality of readers (6) matched with the passive radio frequency sensing tags are uniformly arranged at a place where the walking object (5) is required to be counted, each reader (6) is in signal connection with a cloud server, the passive radio frequency sensing tags are fixed on the walking object (5), when the walking object (5) walks in the place, the passive radio frequency sensing tags extract electric energy required by work from radio frequency energy sent by at least one reader (6), the vibration sensing switch (4) is switched between an electrified state and a powered-off state due to walking actions of the walking object (5), the radio frequency chip (1) senses the on-off state of the vibration sensing switch (4) through a detection circuit (2), and transmits the on-off state signals to the cloud server through the readers (6), the cloud server analyzes the on-off state signals received in a period of time, the number of times of switching between the electrified state and the powered-off state is determined, namely the number of steps of walking objects, the passive radio frequency sensing tags of the walking object (5) can be switched between the electrified state and the powered-off state at any time and the position of the passive radio frequency sensing tags at any time, the passive radio frequency sensing tags can be simultaneously analyzed according to the three-off-state information of the passive radio frequency sensing tags (6) at any position, the three positions of the passive radio frequency sensing tags can be simultaneously read by the cloud-powered-state information, the three-off information can be analyzed according to the on-state information, and the position information can be read by the position information at any position of the passive position sensor (6, the accurate walking steps of the walking object are obtained.
2. The method of claim 1, further comprising a client in signal connection with the cloud server, wherein the client can refer to the number of steps of walking of the walking object for a certain period of time.
3. A step counting method according to any one of claims 1 to 2, characterized in that the passive radio frequency sensing tag is an ultra-high frequency radio frequency tag with an operating frequency of 860-960 MHz, and the effective identification distance between the passive radio frequency sensing tag and the reader (6) is 2-10m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210563730.7A CN114881187B (en) | 2022-05-23 | 2022-05-23 | Passive radio frequency sensing tag and step counting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210563730.7A CN114881187B (en) | 2022-05-23 | 2022-05-23 | Passive radio frequency sensing tag and step counting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114881187A CN114881187A (en) | 2022-08-09 |
| CN114881187B true CN114881187B (en) | 2023-05-12 |
Family
ID=82677337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210563730.7A Active CN114881187B (en) | 2022-05-23 | 2022-05-23 | Passive radio frequency sensing tag and step counting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114881187B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013156905A (en) * | 2012-01-31 | 2013-08-15 | Sato Holdings Corp | Rfid label and rfid label continuous body |
| CN203552280U (en) * | 2013-09-05 | 2014-04-16 | 四川金皇乐爽鹿业有限公司 | Animal management system |
| CN205507814U (en) * | 2016-03-14 | 2016-08-24 | 珠海黑石电气自动化科技有限公司 | Power equipment running state monitoring devices based on RFID sensing label |
| CN209297336U (en) * | 2019-01-08 | 2019-08-23 | 快脉信息科技(上海)有限公司 | A kind of vehicle location radio-frequency recognition system based on I/O state |
| CN112543421A (en) * | 2020-11-18 | 2021-03-23 | 东莞理工学院 | Positioning method, device, equipment and storage medium |
| CN112883999A (en) * | 2021-01-13 | 2021-06-01 | 安徽大学 | Pedometer system and method for detecting abnormal movement of dairy cow |
| CN113158699A (en) * | 2021-04-29 | 2021-07-23 | 深圳供电局有限公司 | Positioning method and system based on passive RFID sensing chip |
| CN114330390A (en) * | 2021-12-06 | 2022-04-12 | 东北农业大学 | Milk cow activity monitoring technology based on RFID passive sensing technology |
-
2022
- 2022-05-23 CN CN202210563730.7A patent/CN114881187B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114881187A (en) | 2022-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101750598B (en) | Wearable indoor positioning system based on radio frequency identification technology and method thereof | |
| Paolini et al. | Fall detection and 3-D indoor localization by a custom RFID reader embedded in a smart e-health platform | |
| US11737426B2 (en) | Motion powered pet tracker system and method | |
| CN105706149B (en) | Tracking system | |
| CN103340487A (en) | Functional shoe system having real-time positioning function by applying satellite remote sensing and positioning method thereof | |
| AU2021102218B4 (en) | Apparatus and system for identification and monitoring of animals | |
| CN103699000A (en) | Smart watch with vibration power supply | |
| CN104361371A (en) | Positioning system and method based on RIFD technology | |
| CN109782317A (en) | It is a kind of based on wearable positioning system | |
| JP2024010089A (en) | Motion powered pet tracker system and method | |
| CN114881187B (en) | Passive radio frequency sensing tag and step counting method | |
| CN205454099U (en) | Intelligence shoes and because positioning system of intelligent shoes | |
| CN104851253A (en) | Intelligent system for garments | |
| CN107765281A (en) | Outdoor study work attendance positioning terminal is afforested based on the environmental sanitation that network distribution type calculates | |
| CN109413586B (en) | Low-power-consumption positioning method and device | |
| US10949723B2 (en) | Systems and methods for providing a tag with a miniature zero power motion detector and energy harvester | |
| CN107507109A (en) | A kind of wisdom scenic spot visitor's monitoring location system | |
| CN207816287U (en) | Positioning bracelet based on LPWAN and BLE technologies | |
| CN207401113U (en) | A kind of Intelligent football leg guard | |
| CN207304140U (en) | Bracelet | |
| CN205081798U (en) | Facility rate of utilization intelligent monitoring system | |
| CN211532981U (en) | Positioning bracelet | |
| CN205430618U (en) | Indoor positioner | |
| CN205378995U (en) | A charging panel, intelligent children's schoolbag and system for intelligent children's schoolbag | |
| CN110376626A (en) | A kind of wearable positioning and tracking device based on Radio Frequency Identification Technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |