CN100416601C - Trolley using wireless radio frequency identification - Google Patents

Abstract

The invention relates to a trolley using radio frequency identification, which can read a radio frequency identification volume label and comprises the following components: the vehicle body is provided with an accommodating space, an upper cover and a plurality of wheels, and the accommodating space is sealed by the upper cover; the reading part comprises at least one radio frequency identification reader and at least one reading antenna, the radio frequency identification reader is connected with the vehicle body, and the reading antenna is positioned in the accommodating space and is in telecommunication connection with the radio frequency identification reader; the storage part is connected with the vehicle body and is in telecommunication connection with the radio frequency identification reader; the control part comprises an opening and closing unit and an induction unit, the opening and closing unit is respectively connected with the vehicle body and the upper cover, the induction unit is in telecommunication connection with the radio frequency identification reader, and the radio frequency identification reader is correspondingly actuated to read/stop reading the radio frequency identification volume label; and a power section. The invention not only avoids the harm of electromagnetic wave to human body, but also can generate electricity and charge by itself when in use, thereby reducing the waste of energy.

Description

Trolleys using radio frequency identification

technical field

The invention relates to a radio frequency identification (RFID) trolley, in particular to a radio frequency identification (RFID) trolley with a closeable upper cover to reduce the harm of electromagnetic waves to the human body.

Background technique

In mass merchandise stores or supermarkets, carts are often a good and convenient helper for consumers when purchasing goods. Using carts instead of carrying them when entering the store not only increases the number of things that can be purchased at one time, but also saves consumers the physical strength of shopping or shopping. . Recently, technology in the field of radio frequency identification (RFID) has developed rapidly. Some inventions have applied radio frequency identification (RFID) devices to trolleys, so that whether it is calculating the purchase amount at the checkout counter or when consumers purchase goods When providing assistance services, it can provide a more correct and efficient shopping environment for businesses and consumers, such as Taiwan Patent No. 588267, U.S. Patent No. 6179206, No. 6659344, and No. 5729697.

However, in the content of the above-mentioned patent, its radio frequency identification (RFID) device will continuously emit RF from consumers entering the store, shopping, checkout, to the store to detect changes in the interior of the cart or the environment, that is, the The patent is only aimed at the application and scope of electromagnetic waves, but does not take into account the problem of reducing the impact of electromagnetic waves on the human body and the power of radio frequency identification (RFID) devices. According to actual tests, in US Patent No. 6,659,344, the RF reading range is not easy to control to only read the range inside the cart, but may read the identification tags of products on adjacent carts or racks ; In U.S. Patent No. 5,729,697, the RF reading direction described in it can be caused by the way in which objects in the car are placed and stacked, causing a blind spot that radio frequency identification (RFID) cannot read in the car.

The Federal Communications Administration (FCC) is the competent unit for radio wave radiation in the United States; its safety standard in the range of 800-900MHz is 1000 microwatts per square centimeter (1000uW/cm ² ); The range of launch time is shown in the table below:

Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm²) average time (minutes) 0.3-3.0 614 1.63 *100 30 3-30 1842/f 4.89/f *180/f2 30 30-300 27.5 0.073 1.0 30 300-1,500 ----- ----- f/1500 30 15,000-100,000 ----- ----- 1.0 30

Note 1: The mark * indicates the equivalent power density of a plane wave.

Just imagine, if every shopping cart has a device that continuously emits radio wave signals, the amount of radio waves received by consumers in the store can easily exceed the safe value, and this is no matter for consumers or for the sales staff in the mall. Health can have adverse effects.

In addition, because the radio frequency identification (RFID) device on the trolley consumes a lot of power, the trolley needs to be charged frequently, so the store needs to prepare many trolleys and space for emergencies. It is a high cost, and if the customer uses the cart for a long time, once the power is exhausted, it will also affect the normal operation of the radio frequency identification (RFID), making the operation of the system quite inconvenient; at the same time, the energy (electricity) Waste is also not in line with the current trend of the times when environmental protection awareness is rising.

Contents of the invention

The technical problem to be solved by the present invention is to provide a trolley using radio frequency identification (RFID). The trolley can emit electromagnetic waves inside to detect radio frequency identification (RFID) labels embedded on commodities. The upper cover can effectively block electromagnetic waves and achieve the effect of maintaining human health.

Another technical problem to be solved by the present invention is to provide a trolley using radio frequency identification (RFID). The trolley is equipped with a small power generation device, so that electricity can be generated through the movement of the trolley to reduce energy consumption.

In order to achieve the above object, the present invention provides a trolley using radio frequency identification, which is characterized in that it can read a radio frequency identification tag, including: a car body with a radio frequency identification tag item In the accommodating space, the vehicle body is also provided with an upper cover and several wheels, the upper cover is connected with the vehicle body to close the accommodating space, and the wheels are rotatably connected with the vehicle body; a reading unit includes at least one a radio frequency identification reader and at least one reading antenna, the radio frequency identification reader is connected to the vehicle body, the reading antenna is located in the accommodating space, and the radio frequency identification reader and the reading antenna connected to each other by telecommunication; a storage unit, which is connected to the vehicle body and is telecommunication connected to the radio frequency identification reader; a control unit, which includes an opening and closing unit and an induction unit, and the opening and closing unit is respectively connected to the vehicle body and the radio frequency identification reader. The upper cover is connected and can be moved to open/close the upper cover, the sensing unit is connected to the vehicle body and is connected to the radio frequency identification reader in telecommunication, and the sensing unit is activated when the upper cover is opened/closed , the sensing unit correspondingly operates the radio frequency identification reader to make it read/stop reading the radio frequency identification tag through the reading antenna; and a power part, which supplies power to the reading part, the storage unit and the control unit.

The above trolley using radio frequency identification is characterized in that the car body is made of materials that can block radio waves.

The above trolley using radio frequency identification is characterized in that the material that can block radio waves is metal.

The trolley using radio frequency identification is characterized in that the reading antenna is located in one of the inner wall and the upper cover of the vehicle.

The trolley using radio frequency identification is characterized in that it further includes a display unit connected to the vehicle body and connected to the storage unit and the power unit by telecommunication to display the information of the storage unit.

The above trolley using radio frequency identification is characterized in that the display unit is selected from the group consisting of a cathode ray tube display, a liquid crystal display, a light emitting diode, and a computer.

The trolley using radio frequency identification is characterized in that the power unit is one of a power generation unit and a battery, and the power generation unit is connected to the vehicle body.

The trolley using radio frequency identification is characterized in that the battery is a rechargeable battery.

The trolley using radio frequency identification is characterized in that the power generation unit is a friction power generation device, the friction power generation device is in contact with at least one of the wheels, and the friction power generation device can be actuated to generate electricity when the wheel rotates.

The trolley using radio frequency identification is characterized in that the power generating unit is a radio device that can receive electromagnetic waves and convert them into electricity.

The trolley using radio frequency identification is characterized in that the storage unit is selected from the group consisting of hard disk, floppy disk, optical disc, radio frequency identification tag, flash disk and flash drive.

The efficacy of the present invention lies in that it can effectively improve the shortcomings of the existing devices, not only avoiding the harm of electromagnetic waves to the human body, but also generating and charging by itself during use, reducing energy waste.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is the side view of the trolley that utilizes radio frequency identification (RFID) of the present invention;

Figure 2 is a perspective view of the trolley using radio frequency identification (RFID) of the present invention; and

FIG. 3 is a partially enlarged view of FIG. 2 .

Among them, reference signs:

1-trolley, 10-car body, 12-reading part

13-storage unit, 14-control unit, 16-power unit

18-display unit, 20-power generation unit

100-accommodating space, 102a, 102b-top cover

104-wheel, 120-radio frequency identification reader

122-reading antenna, 140-opening and closing unit

142-pedal, 144-pivot, 146-inductive switch

Detailed ways

Please refer to FIG. 1 and FIG. 2 , which are respectively a side view and a perspective view of a trolley using radio frequency identification (RFID) according to the present invention. Wherein the trolley 1 is composed of a car body 10 , a reading unit 12 , a storage unit 13 , a control unit 14 and a power unit 16 .

The vehicle body 10 constitutes an accommodating space 100, the accommodating space 100 can accommodate goods (not shown in the figure) equipped with radio frequency identification (RFID) tags, and the vehicle body 10 is also equipped with two upper covers 102a And 102b and several wheels 104, this loam cake 102a and 102b are pivoted with this car body 100 with a pivot portion 144, therefore can open or close this accommodating space 100 (in Fig. 1, this loam cake 102a is opened , the upper cover 102b is then closed), the wheels 104 are rotatably connected with the vehicle body 100, so that the trolley 1 is movable.

The reading portion 12 is made up of a radio frequency identification (RFID) reader 120 and a reading antenna 122, the radio frequency identification (RFID) reader 120 is connected with the vehicle body 10, and the reading antenna 122 is connected with the vehicle body 12. The upper cover 102a is connected with 102b, and can also be located in the accommodating space 100 (the dotted line in FIG. 1 ), and the radio frequency identification (RFID) reader 120 is telecommunication connected with the reading antenna 122 .

The storage unit 13 is connected with the vehicle body 10 and connected with the radio frequency identification (RFID) reader 120 telecommunication, the storage unit 13 is used to record the user's shopping data; the control unit 14 includes an opening and closing unit 140, A pedal 142 is made up of an induction unit (not shown in the figure, will be described later), and the opening and closing unit 140 is respectively connected with the vehicle body 10 and the pivot portion 144, so a user (not shown in the figure) (shown) the pivot portion 144 can be actuated by the pedal 142 to open or close the upper covers 102a and 102b.

The display unit 18 is connected to the vehicle body 10 and connected to the storage unit 13 by telecommunication to display the information of the storage unit 13 . The power unit 16 is connected to the vehicle body 10 and is electrically connected to the reading unit 12 , the storage unit 13 , the control unit 14 and the display unit 18 to supply power to the reading unit 12 and the storage unit 13 , the control unit 14 and the display unit 18 .

This trolley 1 is also provided with a power generation part 20, and this power generation part 20 is connected with this car body 10 and is connected with this power part 16 telecommunication, in Fig. The wheels 104 are in contact so that when the wheels 104 rotate (that is, when the trolley 1 is pushed), the generating unit 20 is actuated to generate electricity, and the generated electricity is transmitted to the power unit 16 for charging.

Please refer to FIG. 3 again, which is a partially enlarged view of FIG. 2 . Wherein the pivot portion 144 is also provided with an inductive switch 146, the inductive switch is connected with the pivot portion 144 and is in telecommunication connection with the radio frequency identification (RFID) reader 120 (not shown in the figure), when the upper When the cover 102a is opened or closed, the inductive switch 146 will be actuated, and the inductive switch 146 will correspondingly act on the radio frequency identification (RFID) reader 120 to make it emit electromagnetic waves through the reading antenna 122 to read or stop reading. The radio frequency identification (RFID) tag (not shown). The reading action can be designed to read when the top cover is opened and stop reading when it is closed; or stop reading when the top cover is opened and start reading when it is closed; or start reading for a specific time after switching once (For example, 3 to 5 seconds, to ensure that the read radio frequency identification (RFID) tag is indeed the item tag in the trolley), etc., and the reading method is based on the needs of the user or the retail store and/or or the power of the battery, and will not be repeated here.

Although, in this embodiment, the inductive switch is a push-button inductive switch, it can also be any existing inductive switch, as long as it can sense the switching action of the upper cover and can drive the radio frequency identification (RFID) reader can read or stop reading.

In addition, the display unit may be a cathode ray tube display (CRT-Display), a liquid crystal display (LCD), a light emitting diode (LED), or a computer. The storage unit can be a hard disk, a floppy disk, an optical disk, a radio frequency identification (RFID) tag, a flash disk or a pen drive. In addition, in addition to the friction power generation device, the power generation unit can also be a radio device, which can receive electromagnetic waves and convert them into electricity, so electromagnetic wave emitting devices can be set at specific places in the store, so that when the cart passes by this place Electromagnetic waves can be received and used to generate electricity. In addition, the power unit is preferably a rechargeable battery, so it can also be charged using a common power socket. At the same time, the car body is preferably made of metal, so as to effectively block electromagnetic waves in the car and avoid harm to the human body and influence on the environment. Moreover, in the embodiment of the present invention, although the storage unit, the power part, the power generation part and the radio frequency identification (RFID) reader are separately provided, they can also be integrated in a single body, so that the trolley The space utilization can be maximized.

From the above, it can be seen that the present invention can effectively improve the shortcomings of the existing devices, not only avoiding the harm of electromagnetic waves to the human body, but also generating and charging by itself during use, reducing energy waste.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the protection scope of the claims of the present invention.

Claims (9)

1. a trolley that uses radio frequency identification is characterized in that, can read a radio frequency identification label, comprising:

One car body, have can ccontaining radio frequency identification label article an accommodation space, this car body also is provided with a loam cake and several wheels, this loam cake is connected with this car body to seal this accommodation space, this car body and this loam cake are made of the material that can block radiowave, and this wheel is rotatably connected with this car body;

One reading part, comprising at least one radio frequency identification reading machine and at least one antenna that reads, this radio frequency identification reading machine is connected with this car body, this reads sidewall and/or loam cake that antenna is arranged in the car body accommodation space, and this radio frequency identification reading machine with this read antenna each other telecommunications be connected;

One storage part, it is connected with this car body and is connected with this radio frequency identification reading machine telecommunications;

One control part, comprise a folding unit and a sensing unit, this folding unit is connected with this car body and this loam cake respectively, and but start is with this loam cake of On/Off, this sensing unit is connected with this car body and is connected with this radio frequency identification reading machine telecommunications, this sensing unit of start when this loam cake On/Off, this sensing unit then correspondingly move this radio frequency identification reading machine makes it read antenna and read/stop by this and read this radio frequency identification label; And

One Electricity Department, its supply electric power is given this reading part, this storage part and this control part.

2. the trolley of utilization radio frequency identification according to claim 1 is characterized in that, this material that can block radiowave is a metal.

3. the trolley of utilization radio frequency identification according to claim 1 is characterized in that, also comprises a display part, and this display part is connected with this car body and is connected with this storage part and Electricity Department telecommunications, to show the information of this storage part.

4. the trolley of utilization radio frequency identification according to claim 3 is characterized in that, this display part serve as reasons comprise in the group that cathode-ray tube display, LCD, light emitting diode and computing machine form selected a kind of.

5. the trolley of utilization radio frequency identification according to claim 1 is characterized in that, this Electricity Department be a Power Generation Section and a battery one of them, this Power Generation Section is connected with this car body.

6. the trolley of utilization radio frequency identification according to claim 5 is characterized in that, this battery is the rechargeable type battery.

7. the trolley of utilization radio frequency identification according to claim 5, it is characterized in that, this Power Generation Section is the triboelectricity device, and this triboelectricity device contacts with in this wheel at least one, but this triboelectricity device of start makes it produce electric power when this wheel rotation.

8. the trolley of utilization radio frequency identification according to claim 5 is characterized in that, this Power Generation Section is a radio device, and it can receive electromagnetic wave and convert thereof into electric power.

9. the trolley of utilization radio frequency identification according to claim 1 is characterized in that, this storage part serve as reasons comprise in hard disk, floppy disk, CD, radio frequency identification label, flash disk and dish is formed with oneself the group one of selected.

Images