JP2002092752A - Suitcase theft preventing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio suitcase theft preventing device for detecting theft prevention with the usage of a vibration detecting element. SOLUTION: This suitcase theft preventing device for transmitting a signal with the usage of the radio wave includes a transmitting unit and at least one of a receiving unit. The suitcase thest preventing device further includes a control switch by which the transmitting unit transmits various control signals and the receiving unit conducts corresponding movements based on the control signals, a vibration sensor for detecting a vibration signal which is generated by the receiving unit when receiving outer force vibration, and an alarm circuit for generating an alarm signal by the signal transmitted from the control switch or the vibration sensor. When the receiving unit cannot receive the control signal from the transmitting unit, the vibration sensor is started to conduct the alarm circuit, vibration detection and alarming. The transmitting unit can directly control the movements of the alarm circuit through the control switch under an emergency condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kind of wireless antitheft device, and more particularly to a wireless suitcase antitheft device for detecting theft using a vibration detecting element.

[0002]

2. Description of the Related Art Many of the currently well-known suitcase antitheft devices are composed of one transmitter and one alarm,
The transmitter is carried by the user at any time, the alarm is left in the suitcase, the alarm is provided with a buzzer and an alarm control switch, and the distance between the transmitter and the alarm is set at the safe distance set earlier. If so, the alarm will sound an alarm.

However, in an actual use situation, when a user is in a safe and inevitable situation and temporarily goes beyond a safe distance from a suitcase, but forgets to disconnect the alarm first, for example, When checking in at the hotel front desk, for example, if a suitcase was placed beside a sofa in the lobby for a while, the well-known anti-theft device sounded a loud buzzer, which could disturb the user.

[0004] In addition, the alarm control switch of the well-known anti-theft device is attached to the alarm device, so that a thief familiar with such a device directly turns off the alarm device to prevent the alarm device from sounding. Unknowingly steal a suitcase.

[0005] For this reason, it is necessary to improve the detection and control methods of the existing suitcase anti-theft device.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a suitcase anti-theft device in which an error operation is prevented by combining the execution of a vibration detecting operation.

An object of the present invention is to provide a suitcase antitheft device that allows a user to actively control the operation of the antitheft device at any time.

[0008]

According to a first aspect of the present invention, a transmitting unit includes a control key set, an encoder, and a transmitting circuit, and the control keys of the control key set generate different control signals. After transmitting the control signal obtained by the encoder, the transmitting circuit emits the signal in the form of a radio wave signal from the transmitting circuit. The transmitting unit and at least one receiving unit are provided, and include a receiving circuit, a decoder, a control switch, a vibration sensor, and an alarm circuit. The receiving circuit receives the radio wave signal transmitted by the transmitting unit, the decoder decodes the signal and sends it to the control switch as a control signal, and the control switch performs an operation corresponding to the control signal,
When the vibration sensor receives external vibration, it generates a vibration signal,
An alarm circuit is connected to the alarm element to generate an alarm signal by a vibration signal sent from the vibration sensor;
The at least one receiving unit, wherein during a period in which the receiving unit receives the control signal of the transmitting unit, a circuit between the vibration sensor and the alarm circuit is turned off by the control switch, and the receiving unit receives the control signal from the transmitting unit. When no vibration is received, the control switch is activated to turn on the vibration sensor and the alarm circuit, and the alarm circuit generates an alarm signal by receiving a vibration signal generated when the vibration sensor detects external vibration. A special feature is a suitcase anti-theft device. The invention according to claim 2 is the suitcase anti-theft device according to claim 1, wherein the control key set of the transmission unit includes at least an activation key and a disconnection key. According to a third aspect of the present invention, there is provided the suitcase anti-theft device according to the second aspect, wherein the activation key and the disconnection key are integrally designed. The invention according to claim 4 is the suitcase antitheft device according to claim 1, wherein the control key set of the transmission unit includes a stop key for stopping an alarm signal generated by an alarm circuit. . The invention according to claim 5, wherein the control key set of the transmitting unit includes an emergency key capable of directly activating an alarm circuit and generating an alarm signal, wherein the suitcase is stolen according to claim 1. It is a preventer. The invention of claim 6 is the suitcase anti-theft device according to claim 1, wherein the vibration sensor detects a change in the angle of the receiving unit and generates a vibration signal. The invention according to claim 7 is the suitcase anti-theft device according to claim 1, wherein the control switch is a normally-open changeover switch. The invention of claim 8 is the suitcase anti-theft device according to claim 1, wherein the alarm element is a buzzer and generates an alarm signal of an alarm sound.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The suitcase antitheft device of the present invention includes one transmitting unit and at least one receiving unit, and the transmitting unit and the receiving unit control signals using a radio wave transmission system. The former is carried by the user at any time, and the latter is installed in a suitcase to be stolen.

[0010] The transmitting unit includes basic radio wave emission and signal encoding related circuits, and further comprises a control key set, wherein the control key set is composed of a plurality of keys, each key having a different control. The signal is generated, and the user selects a different control signal as necessary and emits the signal to the receiving unit, so that the receiving unit can execute the corresponding operation.

The receiving unit includes one control switch, one vibration sensor, and one alarm circuit, in addition to basic circuits related to basic radio wave reception and signal decoding.
The control switch performs an operation corresponding to the transmitted control signal, the vibration sensor detects a vibration signal generated by the receiving unit under the influence of external force vibration, and an alarm circuit is connected to the alarm element, An alarm signal is generated by a control signal or a vibration signal sent from a control switch or a vibration sensor. The alarm element is a buzzer, a flasher, or an electric shock.

[0012] The receiving unit and the transmitting unit are within a set distance range from each other (that is, a safe range where the user can pay attention).
, The vibration sensor is turned off. In this case, the alarm circuit can be activated only by controlling the control switch through the control switch set, thereby effectively avoiding the error operation.

When the receiving unit and the transmitting unit exceed a mutually set distance range (that is, a safety range that can be watched by the user), the vibration sensor is activated to enter the alert detection state. Just by moving the suitcase or receiving a shock, the alarm circuit is activated to achieve the anti-theft function.

In fact, the control key set of the transmitting unit can be provided with an emergency key and a stop key in addition to a general basic start key and disconnect key.

Among them, the emergency key can be applied to various types of sudden situations, and its use time does not depend on whether the distance between the transmitting unit and the receiving unit exceeds a set range. For example, when the user cannot see the suitcase in a place where there are many people, regardless of whether the distance between the two exceeds the set range, pressing the emergency key can change the position of the suitcase or belongings. You can check. Or,
When someone attempts to steal a suitcase, the thief can be threatened by pressing the emergency key, regardless of whether the distance between them exceeds the set range. Alternatively, it is used for personal rescue during other emergency situations. The stop key is used to cancel or stop the operation of the alarm circuit.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1, 2, and 3, a suitcase antitheft device 10 of the present invention includes a transmitting unit 20 and a receiving unit 30.

The transmitting unit 20 includes a control key set 2
1, encoder 22, transmission circuit 23 and sequence generator 24
Inclusive. As shown in FIG. 1, the control key set 21 is composed of one start key 211, disconnect key 212, stop key 213 and emergency key 214, each of which generates a corresponding different control signal. In order to simplify the number of keys, the activation key 211 and the cutting key 212 can be combined to form an integral type (not shown). As shown in FIG. 2, the generated control signal is encoded by the encoder 22, further transmitted through the transmission antenna 25 from the transmission circuit 23, and emitted outside in the form of a radio wave,
The sequence generator 24 controls the clock frequency of the radio wave emission. Since the technology of radio wave emission belongs to a well-known technology and is not the focus of the present invention, the description is omitted.

The receiving unit 30 includes a receiving circuit 31, a decoder 32, a control switch 33, a vibration sensor 34, an alarm circuit 35, and a sequence controller 36. As shown in FIG. 2, the receiving circuit 31 receives the radio wave signal transmitted by the transmitting unit 20 through the receiving antenna 37, decodes the signal by the decoder 32, and converts the signal into a control signal.
After the reception time is controlled by the sequence controller 36, the reception time is further transmitted to the control switch 33, and the control switch 33 performs the corresponding operation. According to this embodiment, the vibration sensor 34 is an angle detection switch, and generates a vibration signal when detecting an angle change, for example, when moving or lifting a suitcase, and the alarm circuit 35 is connected to the alarm element 40. The vibration signals sent from the vibration sensor 34 or the control switch 35 generate an alarm signal by receiving the control signal. In this embodiment, the alarm element 40 is a buzzer 41, and when the alarm circuit 35 is activated, the alarm signal is displayed in the form of an alarm sound.

In practice, other detection methods, such as an impact detection method, can be employed for the vibration sensor 34, and the invention is not limited to the angle detection method. Further, the alarm element 41 is not limited to the buzzer 41, and may be a flasher (not shown) to provide an alarm signal of a flash display, or a lightning device (not shown) capable of generating a high voltage. ) To generate an alarm signal of an electric shock threat.

In addition, in order to reduce the manufacturing cost and make the volume compact, in this embodiment, the control switch 33 is used.
Is a simple and well-known normally-closed changeover switch element, which employs an installation system integrated with the alarm circuit 35.

The operation of the present invention will be described below. Please refer to FIG.

The receiving unit 30 is left in a suitcase to be stolen, and the user carries the transmitting unit 20 and presses the activation key 211 to activate the suitcase antitheft device 1.
0 starts the theft prevention detection work. Transmission unit 20
Continuously emits a radio signal to the receiving unit 30 according to the set clock frequency of the sequence generator 24.

When the distance between the transmitting unit 20 and the receiving unit 30 is within the set range, the control switch 33 does not operate for a while, and the vibration sensor 34 is in a standby state. At this time, if an emergency special situation occurs, the user directly presses the emergency key 214 to cause the transmitting unit 20 to emit an emergency control signal toward the receiving unit 30. Thus, the control switch 33 activates the alarm circuit 35 to generate an alarm signal. When the situation is to be canceled, the stop key 213 may be further pressed.

When both the transmitting unit 20 and the receiving unit 30 exceed the set range, the control switch 33 of the receiving unit 30 turns on the circuit between the vibration sensor 34 and the alarm circuit 35. 34
Detects an abnormal situation, generates a vibration signal to the alarm circuit 35, and in response, the alarm circuit 35 generates an alarm signal. At this time, if it is desired to stop the alarm signal, the stop key 213 may be pressed.

Alternatively, if the user encounters an emergency situation,
Regardless of whether the distance between the transmitting unit 20 and the receiving unit 30 exceeds the set range, in any case, if the emergency key 214 is directly pressed, the alarm circuit 3
5 can be activated to generate an alarm signal. When the situation is canceled, the stop key 213 may be pressed.

It should be noted that, in the suitcase antitheft device 10 provided by the present invention, its transmitting unit 20 can simultaneously detect a plurality of receiving units 30 to perform antitheft detection.

The circuit diagrams shown in FIGS. 5 and 6 are possible circuit diagrams provided by the technical contents presented in the present invention.

[0028]

The present invention is a suitcase anti-theft device for transmitting a signal using radio waves, comprising a transmitting unit and at least one receiving unit, wherein the transmitting unit emits different control signals, and the receiving unit transmits the control signal. A control switch that performs a corresponding operation according to a control signal, a vibration sensor that detects a vibration signal generated when the receiving unit receives external force vibration,
Includes an alarm circuit that generates an alarm signal based on a signal sent from a control switch or a vibration sensor. When the receiving unit cannot receive a control signal from the transmitting unit, the vibration sensor is activated to activate the alarm circuit, vibration detection, and alarm. It is characterized by the fact that the issuing unit can directly control the operation of the alarm circuit through the control switch in an emergency situation.

In summary, the present invention can reliably achieve the purpose of theft prevention, and has inventive step and practicality. But,
The above description is merely the description of the embodiment of the present invention, and does not limit the scope of the present invention. Any modification or alteration of details that can be made based on the present invention belongs to the scope of the present invention. For example, both the emergency key and the alarm circuit may be designed to operate synchronously, that is, if the emergency key is pressed for a long time, the alarm circuit may also be designed to operate synchronously for the same time.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a circuit block diagram of a transmitting unit according to the present invention.

FIG. 3 is a circuit block diagram of a receiving unit according to the present invention.

FIG. 4 is an operation flowchart of the present invention.

FIG. 5 is a circuit diagram showing an embodiment of a transmitting unit according to the present invention.

FIG. 6 is a circuit diagram showing a receiving unit according to an embodiment of the present invention.

[Explanation of symbols]

10 Anti-theft device 20 Transmission unit
21 Control key set 211 Start key 212 Disconnect key
213 Stop key 214 Emergency key 22 Encoder
23 transmission circuit 24 sequence generator 25 launch antenna
Reference Signs List 30 receiving unit 31 receiving circuit 32 decoder
33 Control switch 34 Vibration sensor 35 Alarm circuit
36 Sequence controller 37 Receiving antenna 40 Alarm element
41 Buzzer

Claims (8)

[Claims] An originating unit, a control key set,
The transmitting unit comprising an encoder and a transmitting circuit, wherein the control keys of the control key set generate different control signals, encode the generated control signals by the encoder, and then transmit the generated control signals in the form of a radio wave signal from the transmitting circuit. And at least one receiving unit, including a receiving circuit, a decoder, a control switch, a vibration sensor, and an alarm circuit, the receiving circuit receives the radio wave signal transmitted by the transmitting unit, and the decoder decodes and outputs the control signal and After sending to the control switch, the control switch performs the operation corresponding to the control signal, generates a vibration signal when the vibration sensor receives external vibration, the alarm circuit is connected to the alarm element, and sent from the vibration sensor And at least one receiving unit for generating an alarm signal by a vibration signal. When the unit receives the control signal of the transmitting unit, the circuit between the vibration sensor and the alarm circuit is turned off by the control switch, and when the receiving unit does not receive the control signal from the transmitting unit, the control switch operates to activate the vibration sensor. A suitcase anti-theft device, wherein the alarm circuit generates an alarm signal by receiving a vibration signal generated when the vibration sensor detects an external vibration, wherein the alarm circuit generates an alarm signal. 2. The suitcase anti-theft device according to claim 1, wherein the control key set of the transmission unit includes at least an activation key and a disconnection key. 3. The suitcase anti-theft device according to claim 2, wherein the activation key and the disconnection key are integrally designed. 4. The suitcase anti-theft device according to claim 1, wherein the control key set of the transmitting unit includes a stop key for stopping an alarm signal generated by an alarm circuit. 5. The suitcase anti-theft device according to claim 1, wherein the control key set of the transmitting unit includes an emergency key capable of directly activating an alarm circuit and generating an alarm signal. . 6. The suitcase anti-theft device according to claim 1, wherein the vibration sensor detects a change in the angle of the receiving unit and generates a vibration signal. 7. The suitcase anti-theft device according to claim 1, wherein the control switch is a normally open type changeover switch. 8. The suitcase anti-theft device according to claim 1, wherein the alarm element is made a buzzer to generate an alarm signal of an alarm sound.