JPH0637986U - Anti-theft system - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide an antitheft system capable of automatically preventing theft without bothering employees. [Structure] The product 3 is provided with a barcode 1 and an anti-theft sensor 2. When the barcode 1 is read, the barcode scanner 5 invalidates the anti-theft sensor 2. On the other hand, when the anti-theft sensor 2 is not disabled by the barcode scanner 3, the alarm system 1
3 issues an alarm when the product 3 tries to pass through the exit of a store or a supermarket.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an anti-theft system provided in a store or a supermarket.

[0002]

[Prior art]

 Conventionally, the following measures have been taken in stores and supermarkets to prevent theft of goods. Employees look around the store as appropriate. A surveillance camera will be installed to monitor products for theft.

In the case of the above measure, there is an advantage that the required cost can be minimized because no particular equipment is required. In addition, if the measure is taken, there is an advantage that even if the employee does not notice that when the product is stolen, it can be investigated later. In other words, if the remaining product and sales do not match, it is possible to find out who stole the product by playing back the video captured by the surveillance camera.

[0004]

[Problems to be solved by the device]

 However, according to the above-mentioned measures, there is a problem that the employee needs to catch the product theft site, though the required cost is minimized. In addition, even if they could catch the place of the product theft and abduct the theft and report it to the police, there was a drawback that other customers in the store gave up on purchasing the product and fled. Furthermore, there is a problem that the employees themselves are in danger. In addition, according to the above measure, there is a drawback that the time required to watch the video shot by the surveillance camera is abnormally taken.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an antitheft system capable of automatically providing antitheft without bothering an employee. And

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention has a bar code and an anti-theft sensor provided on a product, a function for reading and outputting the bar code, and a case where the bar code is read. Includes a bar code scanner that disables the anti-theft sensor and the product that passes through the entrance of the store or supermarket if the anti-theft sensor for the product is not disabled by the bar code scanner. In this case, a stolen product detection means for issuing an alarm is provided.

[0007]

[Action]

 The product is equipped with a bar code and an anti-theft sensor. The bar code scanner invalidates the anti-theft sensor when the bar code is read. On the other hand, if the anti-theft sensor is not invalidated by the bar code scanner, the theft product detection means generates an alarm when the product tries to pass through the entrance of the store or supermarket. Theft can be prevented in advance.

[0008]

【Example】

 Hereinafter, embodiments will be described with reference to the drawings.

§1. Configuration of Embodiment Reference numeral 3 shown in FIG. 1 indicates an example of a product, and a bar code 1 and a magnetic tape 2 are attached to the upper surface thereof. The magnetic tape 2 is strongly magnetized in one direction.

Reference numeral 5 in FIG. 2 is a bar code scanner, which includes an optical bar code reader 6 a, a bar code reading circuit 6 b to which an output signal of the bar code reader 6 a is input, a degaussing coil 7 a, and a degaussing coil 7 a. The degaussing coil 7a is connected to the degaussing circuit 7b. The bar code reader 6a is moved by contacting the bar code 1 to read the bar code 1. The bar code reading circuit 6b converts the output signal of the bar code reader 6a into digital data and outputs it to a POS (point of sale) system 8. The degaussing coil 7a is moved in contact with the magnetic tape 2 at the same time when the bar code reader 6a is moved in contact with the bar code 1, and demagnetizes the magnetism of the magnetic tape 2. The degaussing circuit 7b generates an AC degaussing signal that gradually decreases from a constant value at the timing when the bar code reading circuit 6b reads the bar code 1, and outputs it to the degaussing coil 7a.

In FIG. 3, reference numerals 11b and 12b denote plate-shaped gates, which are erected so as to sandwich the outlet passage, and coils 11a and 12a are embedded in the interiors of the gates. An alarm system 13 is shown in detail in FIG. In this figure, 14 and 15 are resistors, which form a bridge circuit 16 together with the coils 11a and 12a described above. Reference numeral 17 is an alarm circuit, which issues a warning when the balance of the bridge circuit 16 is lost. Reference numeral 18 is a power supply that supplies an alternating voltage to the bridge circuit 16.

§2. Operation of Embodiment Next, the operation of the above-described embodiment will be described. First, it is assumed that the barcode 1 and the magnetic tape 2 are attached in advance to all the products in the store. Then, in the store, the purchaser selects an arbitrary product 3 from the many products displayed on the display shelves and goes to the payment place. Then, the employee makes the bar code reader 6a and the degaussing coil 7a of the bar code scanner 5 come into contact with the bar code 1 and the magnetic tape 2 of the product 3, and moves the bar code scanner 5 in a predetermined direction. Pull to.

As a result, the barcode reading circuit 6b reads the amount of money of the product 3 and sends it to the POS system 8. Therefore, the product 3 is added to the sales. On the other hand, the degaussing coil 7a erases the magnetic field of the magnetic tape 2. Then, the purchaser pays the price of the product 3. Then, with the product 3 properly packaged, it tries to pass between the gates 11b and 12b provided at the exit. In this case, since the magnetic field of the magnetic tape 2 is erased as described above, the balance of the bridge circuit 16 is not lost. Therefore, the alarm circuit 12 does not give an alarm. When the purchaser returns the product 3 from which the magnetic field of the magnetic tape 2 has already been erased, the magnetic tape 2 is magnetized by a writing device (not shown) or a bar code scanner 5 having a writing function. Just write in. As a result, the sales of the product 3 are automatically subtracted from the POS system 8.

Next, a thief pretends to be a purchaser and intrudes into the store, and searches for the product 3 arbitrarily. Then, the employee's eyes are stolen and the product 3 is hidden in the thief's bag or the like. Then, pretending that there was no product that he liked, he tried to get out of the store at an appropriate opportunity. Then, when the thief passes between the gates 11b and 12b and the magnetic tape 2 provided on the product 3 passes between the coils 11a and 12a, a reverse electromotive force is generated in the coils 11a and 12a. Occurs, and the balance of the bridge circuit 16 is lost. Therefore, a voltage is generated at both ends of the alarm circuit 12, and the alarm starts to sound.

Although the magnetic tape 2 and the barcode 1 are separately provided in the above-described embodiment, the barcode may be printed on the magnetic tape 2.

[0016]

[Effect of device]

 As described above, according to the present invention, the product is provided with the bar code and the anti-theft sensor, and the bar code scanner has a function of reading and outputting the bar code and reading the bar code. In this case, since the anti-theft sensor has a function of disabling the anti-theft sensor, there is an advantage that the anti-theft function can be automatically achieved without bothering an employee.

[Brief description of drawings]

FIG. 1 is a bar code 1 according to an embodiment of the present invention.
3A and 3B are diagrams showing a magnetic tape 2 and a magnetic tape 2.

FIG. 2 is a diagram showing a barcode scanner 5 according to an embodiment of the present invention.

FIG. 3 is an external view of an alarm system 13 according to an embodiment of the present invention.

FIG. 4 is a diagram showing a circuit configuration of a bridge circuit 16 according to an embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of an anti-theft system according to an embodiment of the present invention.

[Simple explanation of symbols]

 1 Bar Code 2 Anti-Theft Sensor 3 Product 5 Bar Code Scanner 6a Bar Code Reader 6b Bar Code Reading Circuit 7a Degaussing Coil 7b Degaussing Circuit 8 POS System 11a, 12a Coil 11b, 12b Gate 13 Alarm System 14, 15 Resistance 16 Bridge Circuit 17 Alarm circuit 18 AC power supply

Claims (1)

[Scope of utility model registration request] 1. A bar code and an anti-theft sensor provided on a product, and a bar code having a function of reading and outputting the bar code, and invalidating the anti-theft sensor when the bar code is read. A scanner, and a stolen product detection unit that generates an alarm when the product tries to pass through the entrance of the store or supermarket when the anti-theft sensor of the product is not disabled by the barcode scanner, An anti-theft system characterized by being equipped.