JP2008301469A - Baggage monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a more exact, light-weight, and small baggage monitoring system. <P>SOLUTION: A transmitting member mounted on a baggage and equipped with function for detecting states of stillness and movement using a sensor and informs it on radio, and a receiving member equipped with function for monitoring the communication state with the transmitting member, receiving the notification from the transmitting member, while a holding person of the baggage carries, and detecting the state of stillness and movement of the holding person of the baggage are provided. In the receiving member, necessary alarm is emitted when it is judged that there is no correlation by collating the state of the stillness and movement, which was informed from the transmitting member, and the state of stillness and movement of the holding person of the baggage. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention includes a transmitter that is attached to a baggage and detects the state of the baggage stationary and moving with a sensor and wirelessly notifies it, a function that the baggage holder carries and receives the notification, and the baggage holder's Consists of a receiver that has a function to detect the stationary and moving states with a sensor. In the receiving device, the stationary and moving states of the transmitting device and the stationary and moving states of the baggage holder are collated and correlated. A lightweight, small baggage monitoring device that issues a required warning when it is determined that there is no baggage.

Various monitoring devices have been put into practical use in order to prevent troubles such as leaving or taking away baggage when traveling with baggage. Generally, these monitoring devices are composed of a transmitter and a receiver, and the transmitter is attached to the baggage, and the baggage holder carries the receiver, and the distance between the transmitter and the receiver is small. The baggage is separated from the baggage holder, for example, when the transmitter cannot receive a signal from the transmitter, or when a sensor that detects vibration, movement, etc. in the transmitter detects the movement wirelessly. A warning sound is generated and the baggage holder is made aware.

Conventional monitoring devices determine that a baggage has been misplaced or taken away when a wireless signal cannot be received or when a sensor that detects vibration or movement attached to the baggage is activated. The condition is very inaccurate.

Because the propagation state of radio is greatly influenced by the influence of obstacles and interference waves, it is very difficult to grasp the distance of transmission and reception from the propagation state of radio waves. It is impossible to judge that it has been misplaced or taken away. In addition, the method of judging the deviation of baggage from the operation of sensors that detect vibration, movement, etc. of baggage is greatly influenced by the environmental conditions where the baggage is placed, so that the sensor attached to the baggage is activated. It cannot be determined that the baggage was taken away alone.

In short, the conventional monitoring device that judges whether the baggage is left behind or taken away due to radio propagation conditions, baggage vibration, movement, etc. has the disadvantage that only an inaccurate alarm can be obtained. The challenge is to provide a more accurate, lightweight and compact baggage monitoring device.

A transmitter that is attached to the baggage and that has a function to detect the state of stationary and movement of the baggage with a sensor and wirelessly notify it, and a baggage holder to carry, monitor the communication status with the transmitter, and from the transmitter It is composed of a receiver that has the function of receiving the notification of the baggage and the function of detecting the stationary and moving state of the baggage holder with a sensor. The required alarm is issued when it is determined that there is no correlation between the baggage holder's stationary and moving states.

In the baggage monitoring device of the present invention, in addition to the information on the stationary and moving state of the transmitter, the baggage holder and the baggage holder can be determined by checking the stationary and moving states of the baggage holder. Lightweight, small-sized baggage monitoring that can accurately monitor the misplacement and removal of baggage by being able to remarkably improve the accuracy of the alarm because the level of warning is determined by identifying the situation A device is realized.

According to the present invention, “the baggage and the baggage holder are both moving on the same train or car”, “the baggage holder sits on the seat and puts the baggage on the shelf and is stationary” Baggage and baggage holders are closely related to their movements, such as “the baggage holder is moving together with his / her baggage”. Focuses on what is needed. As shown in Table 1, baggage and baggage holders are "moving and stationary", strong caution in relation to "stationary and moving", caution required in "moving and moving", and caution not required in "stationary and stationary" to decide. That is, in order to prevent misplacement or removal of baggage, it is necessary to monitor both the baggage and the movement of the baggage holder. Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic perspective view of a transmitter (1) and a receiver (2) of a lightweight and small baggage monitoring apparatus according to an embodiment of the present invention. The transmitter includes a power switch 1, a movement detection sensor 2, a transmission antenna 3, an attachment member hole 4 for baggage, and the like. The receiving tool is a power switch 5, a movement detection sensor 6, a receiving antenna 7, an attachment member hole 8 for a baggage holder, an alarm stop switch 9, a speaker 10, a vibrator 11, an LED indicator lamp 12, an alarm selection switch 13, and the like. Composed.

FIG. 2 is a schematic diagram showing the circuit configuration of the transmitter. The movement detection sensor 14 in the transmitter is a sensor that detects the movement of the baggage such as tilt and vibration. The movement detection sensor 14 employs a structure that detects the movement of the neodymium magnet in a non-contact manner using a reed switch. Analyzing the period, interval, duration, etc., and outputting the stationary code following the ID code specific to the transmitter in the stationary state, and the moving code encoding the degree of movement following the ID code in the moving state to the modulation circuit 16 In the modulation circuit, a high frequency carrier wave is modulated with a code signal, amplified as required, and radiated from the antenna 17 to notify the receiver. In addition, the notification is intermittently transmitted at a predetermined interval and cycle to take measures to extend the battery life.

FIG. 3 is a schematic diagram showing a circuit configuration of the receiver. The movement detection sensor 18 in the receiver is a sensor that detects the movement of the baggage holder, adopts a structure that detects the movement of the neodymium magnet in a non-contact manner using a reed switch, and the detection processing circuit 19 Analyze the degree of movement based on the interval and duration. The radio signal notified from the transmitter is tuned and detected by the antenna 20 and the receiver circuit 21, and the demodulated code contents are analyzed. If a stationary code is detected, the transmitter is stationary and a moving code is detected. Then, the degree of movement of the transmitter is recognized.

The information obtained from the transmitter and the information on whether the baggage holder is stationary or moving by the movement detection sensor of the receiver are collated by the alarm analysis circuit 22 so that the baggage and the baggage holder can move quickly. As a judgment condition, the urgency level of the alarm is displayed by the alarm cycle, interval, tone, and the like. In the alarm status table shown in Table 1, the case where both the baggage and the baggage holder are in the moving state is the most subtle. In the worst case, the person moving with the baggage and the baggage holder Since there may be another person, if both are in a moving state, a method of generating a warning for a short time and prompting confirmation is adopted. Further, when the power of the receiver is turned on and a code from the transmitter is not received even after a predetermined time has elapsed, and also when the received ID code is different from the normal code a plurality of times, an alarm is issued. The alarm means is configured such that a speaker, a vibrator, an LED indicator, or the like can be selected by the alarm selection switch 13. The alarm can be stopped by the alarm stop switch even during alarm occurrence.

As described above, in the baggage monitoring apparatus of the present invention, in addition to the information on whether the transmitter is stationary or moving, it is checked whether the baggage holder is stationary or moving. Judgment makes it possible to identify the state of the baggage and the baggage holder and determine the level of warning, thus realizing a lightweight and small baggage monitoring device that can significantly improve the accuracy of the warning. The

As a movement detection sensor that detects the movement of baggage and baggage holders, it adopts a structure that detects the movement of the neodymium magnet in a non-contact manner with a reed switch. The reed switch is sealed with a glass tube and is 10 mm long and Φ1.8 mm. The neodymium magnet adopts Φ3 × 2mm to reduce the weight and size of the device. The movement detection sensor is not limited to a reed switch, but if a three-axis acceleration sensor made by a semiconductor process and capable of measuring the accelerations of all three axes of XYZ is used, the movement speed and direction can be identified. Advanced judgment of the state becomes possible.

Furthermore, by using a direction sensor made by a semiconductor process together with a triaxial acceleration sensor as a movement detection sensor, as described in claim 2, not only mere movement of baggage and a baggage holder, but also any direction It is possible to further improve the monitoring accuracy of the baggage monitoring device by identifying and collating whether or not That is, in the alarm status table shown in Table 1, it is necessary to determine whether or not the baggage and the baggage holder are in a state of caution that both move and the moving speed and moving direction are the same. Therefore, a very accurate judgment is made. Under normal circumstances, baggage and baggage holders should always move in the same direction at almost constant speed, even when people and luggage are moving by train or car. .

The transmitter and receiver have a length x width x thickness of 35 x 55 x 12 mm, and the case is made of plastic to improve portability. The movement detection processing, coding, code analysis, alarm analysis, alarm cycle / interval / timbre creation, etc. in the transmitter and receiver are handled by software using a microprocessor, so a higher level of support is possible depending on the software configuration. In addition, since each transmitter has a unique ID, it is possible to monitor a plurality of pieces of baggage by attaching a transmitter and monitoring with a single receiver. Various modifications can be made without departing from the spirit of the invention.

The present invention relates to a lightweight and small baggage monitoring device for preventing misplacement or removal of baggage.

An overview perspective view of a transmitting tool (1) and a receiving tool (2) is shown. The schematic of the circuit structure in a transmission tool is shown. The schematic of the circuit structure in a receiver is shown.

Table 1

An alarm status table is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Power switch of transmitting tool 13 Alarm selection switch of receiving tool 2 Movement detection sensor of transmitting tool 14 Movement detecting sensor of transmitting tool 3 Transmitting antenna of transmitting tool 15 Detection processing circuit of transmitting tool 4 Hole for mounting member of transmitting tool 16 Transmission Device modulation circuit 5 Receiver power switch 17 Transmitter antenna 6 Reception tool movement detection sensor 18 Reception tool movement detection sensor 7 Reception tool reception antenna 19 Reception tool detection processing circuit 8 Receiving tool mounting member hole DESCRIPTION OF SYMBOLS 20 Antenna of receiving tool 9 Alarm stop switch of receiving tool 21 Reception circuit of receiving tool 10 Speaker of receiving tool 22 Alarm analyzing circuit of receiving tool 11 Vibrator of receiving tool 12 LED indicator light of receiving tool

Claims (2)

With regard to a monitoring device that notifies the user of misplaced or removed baggage, the transmitter is equipped with a function that is attached to the baggage and that detects the state of the baggage's rest and movement with a sensor and wirelessly notifies it, and the baggage holder carries it. It consists of a receiver that has a function of monitoring the communication status with the transmitter and receiving notification from the transmitter, and a function of detecting the state of stationary and movement of the baggage holder with a sensor. Checking the status of stationary / moving reported from the transmitter with the status of stationary / moving of the baggage holder and issuing a required warning when it is determined that there is no correlation, the misplaced baggage Lightweight and small baggage monitoring device that reliably monitors removal. The light weight according to claim 1, wherein the transmitter and receiver are detected and collated by detecting a stationary state, a moving state, and a moving direction with a sensor, and a required warning is issued when it is determined that there is no correlation. A small baggage monitoring device.

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