JPH1196465A - Anti-theft terminal - Google Patents

Abstract

(57) [Summary] [Problem] To accurately identify the location of an object by transmitting accurate position data as needed without the intervention of a person, to immediately detect an abnormal situation, and to automatically transmit and output error information. To prevent things from being stolen. SOLUTION: A mobile phone 6 using a wireless telephone line L
And a GPS receiving antenna 3a for receiving a GPS satellite signal
A GPS receiver 3b that calculates its own position from a satellite signal e, a sensor input unit 4a that detects an abnormal state,
A data control means 4 for reading the position data X and Y from the PS receiver 3b, judging an abnormal state from the value of the position data and controlling the input / output of data, and a signal for converting the position data X and Y into a predetermined signal Conversion means 5 for automatically making a line connection at least in response to a telephone call, or by determining the state of a sensor signal or the value of position data,
The line is automatically connected, and the position data is transmitted and output via the wireless telephone line L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device for transmitting and outputting position data obtained by a GPS receiver using a wireless telephone line.

[0002]

2. Description of the Related Art Conventionally, a car navigation system has been provided with a GPS receiving antenna for receiving signals from GPS satellites and a GPS receiver for converting satellite signals into position data, and displays its own position on a display device together with a map. It has been known.

[0003] A car navigation device 30 shown in FIG. 7 includes a GPS receiving antenna 34, a GPS receiver 35, a control device 36, and a liquid crystal display 37, and is installed in a car 39.

Here, the satellite signal 31 from the GPS satellite 38
Are received by a GPS receiving antenna 34 and converted into position data 33 by a GPS receiver 35. This position data 3
Reference numeral 3 denotes a control device 36 which processes the map information 32 and outputs it to the liquid crystal display 37.

[0005] A car navigation device mounted on such a car obtains the current position (latitude and longitude) of the running car by receiving satellite signals from GPS satellites and displays the current position (latitude and longitude) on a map drawn on a display. It is a way to get to the destination from the location.

[0006] However, such a car navigation system has a structure in which a person at another place cannot be immediately informed of his / her position.

On the other hand, with the advance of information technology, mobile phones and P
Portable telephones such as an HS, a car telephone, and a portable terminal device have begun to spread. These mobile phones and the like allow a person to easily and verbally notify the location from a distance.

[0008] Therefore, it is conceivable that the information of the car navigation device is verbally transmitted to a person at another place by using the portable telephone.

In recent years, there has been known a recording device which records a traveling route with time using an output signal of a car navigation system utilizing the principle of GPS.

[0010] Such a device records, for example, the traveling path (location) with time, and thereby, the behavior of a person engaged in an outside work that cannot be managed, that is, a worker who drives a business vehicle or a transport vehicle. In addition to verbal communication via a mobile phone or the like, an attempt has been made to analyze the data of a recording device submitted to the office after returning to the office to accurately grasp the execution behavior and to use it for management.

In the above-described conventional position information transmission technique, position data obtained by a GPS receiver is output to a display device such as a monitor or a recording device such as an IC memory.
Or a person verbally announces whereabouts from a portable telephone.

[0012]

In the configuration using the above-mentioned conventional GPS function, data obtained by the GPS function is output to a display device or a recording device, and the position information is transmitted without human intervention. However, there is a problem that it cannot be performed.

That is, in the configuration using the conventional mobile phone, the location is verbally notified from the mobile phone by the intervention of a person, and the location can be intentionally falsely reported. Had a problem.

On the other hand, in the case where accurate position information cannot be transmitted quickly without the intervention of a person, there is a problem that the location of a completely unknown object cannot be specified.

[0015] That is, when construction equipment such as excavators left at night work sites or expensive objects such as high-end automobiles are stolen or lost, the only way to find them is to rely on witnesses. .

It is to be noted that a device for preventing theft using an electronic key or a buzzer sound is also conceivable. However, if the device is prevented from operating on the spot by being lifted and stolen by being rolled up by a lift device, or the device itself may be removed. In such a case, there is a problem that it is not possible to automatically detect the abnormal situation and transmit the position information and the error output immediately on the spot.

[0017] Therefore, it has been desired that such an anti-theft device automatically and promptly transmits position data and error information as needed, without the need for a person to intervene.

According to the present invention, accurate location data is transmitted as necessary without human intervention to specify the location of an object, and at the same time, an abnormal situation is immediately detected and error information is automatically transmitted and output to output the error information. It is an object of the present invention to provide a terminal for preventing theft.

It is another object of the present invention to provide a terminal that transmits and outputs error information in a suitable combination according to the application and recognizes an abnormal state from the position data value to prevent theft.

[0020]

SUMMARY OF THE INVENTION In order to solve the problems of the prior art, the anti-theft terminal of the present invention receives a signal from a portable telephone using a radio telephone line and a plurality of GPS satellites. A GPS receiving antenna, a GPS receiver that calculates its own position from satellite signals received by the GPS receiving antenna and converts it to position data, and a sensor input unit that inputs a sensor signal from a sensor that detects an abnormal state;
Data control means for reading at least position data indicating its own position from the GPS receiver, judging from the value of the position data whether an abnormal condition has occurred and controlling data input / output; and position data input from the data control means And a signal converting means for converting the signal into a signal of a predetermined format which can be transmitted and output via a portable telephone, and automatically connects a line according to at least a telephone call, or a sensor obtained from a sensor input means. According to the determination of the state of the signal and the value of the position data, the line is automatically connected to a preset telephone line, and the transmission and output of the position data is performed via the wireless telephone line.

The signal converting means for converting to a signal of a predetermined format which can be transmitted and output is transmitted or output in a FAX data format from a portable telephone through a mobile communication modem function, or is transmitted through a voice synthesizing means. It is preferable to provide a mode selecting means for selecting which mode of transmitting and outputting the analog audio signal format from the portable telephone.

Further, the sensor signal obtained from the sensor input means may be a signal for detecting the installation state of the machine on which the machine is installed and the machine body, a signal for detecting the power supplied to the machine, or a GPS signal. It is preferable to include a sensor selection unit that selects which signal is to be detected, a signal for detecting power to be supplied to the antenna or a signal for detecting power to be supplied to the GPS receiving antenna and the GPS receiver.

When the position data obtained from the GPS receiver is determined to be abnormal when no data is obtained, or when the magnitude of the moving distance per unit time is larger than a predetermined value. It is an object of the present invention to provide one of a method of determining an abnormal state at a certain time and a method of determining an abnormal state when the state exceeds a preset range.

[0024]

FIG. 1 shows an embodiment of the present invention.
This will be briefly described with reference to FIGS. The anti-theft terminal 1 of the embodiment includes a mobile phone 6 using a wireless telephone line L, a GPS receiving antenna 3a for receiving signals from a plurality of GPS satellites 20, and a satellite signal e received by the GPS receiving antenna 3a. Calculate own position and calculate position data (latitude X,
GPS receiver 3b for converting into longitude (Y), sensor input means 4a for inputting a sensor signal from sensor 2 for detecting an abnormal state, and position data X, Y indicating at least its own position from GPS receiver 3b. A data control means 4 (controller) for judging whether or not an abnormal state is present from the value of the position data and controlling the input / output of data;
Signal converting means 5 for converting the signal into a signal of a predetermined format which can be transmitted and output via a telephone line, automatically connecting a line at least according to a telephone call, or a state of a sensor signal obtained from a sensor input means 4a. When the value of the position data is determined, the line is automatically connected to a telephone line set in advance by the switch 4b, and the position data is transmitted and output via the wireless telephone line L.

The signal converting means 5 for converting the signal into a signal of a predetermined format which can be transmitted and output is transmitted or output in a facsimile data format from the portable telephone 6 via the mobile communication modem 5c, or the voice synthesizing means 5a, A mode selecting means 4c is provided for selecting which mode is to be selected for transmission and output from the mobile phone 6 in the format of an analog audio signal via the mobile phone 5b.

The sensor signal obtained from the sensor input means 4a is a signal for detecting the installation state of the main body 1a of the main body 1 and the main body 1a or a signal for detecting the power supplied to the main body 1. Or a signal for detecting the power supplied to the GPS receiving antenna 3a, or the GPS receiving antenna 3a and the GPS
It is provided with a sensor selection means 4d for selecting a signal for detecting the power supplied to the receiver 3b or a signal for detecting the power.

Further, the position data obtained from the GPS receiver 3b may be in a state where no data is obtained, a state where the magnitude of the moving distance per unit time is larger than a predetermined value, or a state where the position data is obtained in a predetermined range. Is determined to be an abnormal state when any of the states exceeds.

(Operation) With the above configuration, the present invention can perform the following operation. That is, the above GPS
The GPS receiver 3b provided with the receiving antenna 3a receives a satellite signal (C / A code or the like) e from a plurality of artificial satellites 20. The GPS receiver 3b converts the satellite signal e into position data X and Y including at least latitude (north latitude), longitude (east longitude) and the like.

Then, a line connection is automatically made at least in response to a telephone call, or a line connection is made by judging a state of a sensor signal or a value of position data obtained from the sensor input means 4a. Data transmission and output.

Therefore, even if the location is completely unknown, by automatically making a line connection in response to a telephone call, for example, the location of one's own location is changed to a wireless telephone line connected by being called. Can be immediately and automatically transmitted via the signal conversion means 5.

Further, when an abnormality in the sensor input is detected from the selected sensor, that is, when an abnormal situation occurs, a telephone line previously set by a switch 4b or the like according to the state of the sensor signal obtained from the sensor input means 4a. By making a line connection, the own location and error number can be immediately transmitted and output automatically.

Therefore, the receiver who receives this error number can recognize "where" and "what happened", and can immediately take an action to prevent theft.
We can measure theft prevention.

The signal converting means 5 for converting the signal into a signal of a predetermined format which can be transmitted and output is converted from an analog voice signal from the portable telephone 6 via a voice synthesizing means (voice synthesizing memory (ROM 5a) or voice synthesizing IC 5b). If the mode of transmitting and outputting in the format is selected, it is possible to convey the position of the user by voice that can be easily recognized by a person without the intervention of a person.

Further, if a mode is selected in which the signal converting means 5 for converting to a signal of a predetermined format that can be transmitted and output is transmitted and output in a FAX data format from the portable telephone 6 via the mobile communication modem 5c, As in the case of voice, data can be transmitted by character data that can be easily determined by a person without the intervention of a person.

As described above, if one of the modes of data transmission by voice synthesis that cannot be processed by humans and transmission by facsimile data can be selected instead of verbal transmission that lacks reliability, reliable position data X and Y can be transmitted to the terminal. It can be transmitted as data that can be easily understood by humans according to the specifications.

On the other hand, the sensor signal obtained from the sensor input means 4a is a sensor (Hall sensor S) for detecting the installation state of the machine body 50 on which the machine 1 is installed and the machine body 1a.
1) or a sensor (battery sensor S2) for detecting the power supplied to the main unit 1 or the GPS receiving antenna 3a and the GP
If any or all of the sensors for detecting the power supplied to the S receiver 3b (power sensor S3) are selected according to the application, the necessary sensors can be freely installed as needed.

Then, even if a thief notices this machine 1, this machine 1
Is measured, the Hall sensor S1 can detect the removal of the main unit 1. Further, the battery sensor S2 can detect interruption of power supply to the main unit 1. Further, if the power consumption of the GPS receiving antenna 3a or the GPS receiver 3b decreases, the power sensor S3 becomes G
It is possible to detect that either the PS receiving antenna 3a or the GPS receiver 3b is shut off, and to transmit and output, for example, the last sampled position data and error number from the main unit 1 operable with the battery cell 7. it can.

Further, the position data X and Y obtained from the GPS sensor 3 are set in a state where no data is obtained or a state where the magnitude of the moving distance per unit time is larger than a predetermined value. If the GPS receiver antenna 3a is determined to be abnormal even when it is out of the range, the GPS receiving antenna 3a may be broken, carried by a tow truck, or moved from an unmanned construction site. In such a case, it is possible to automatically determine that the vehicle is stolen only from the value of the position data.

The tracking terminal device 1 according to the present invention transmits accurate position data as needed without human intervention to specify the location of an object, and automatically detects an abnormal situation to automatically detect the situation. It is effective in transmitting and outputting error information to prevent theft of an object.

Further, error information is transmitted and output in a suitable combination according to the application, and an abnormal state is recognized from the value of the position data to prevent theft.

[0041]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 6 show an embodiment of the present invention, in which the machine 1 is applied to prevent theft of a construction machine (shovel car). 1 is a sensor 2, G
Controller (data control means) 4 having PS receiving antenna 3a, GPS receiver 3b, sensor input means 4a, mode selection switch 4c, sensor selection switch (and digital switch 4b), voice synthesis memory (ROM) 5
a, a voice synthesizing IC 5b and a mobile communication modem 5c; a signal conversion means 5; a mobile phone 6; Although the main body 1a of the anti-theft terminal 1 is omitted for convenience of illustration, it is fixedly installed in a cabin of a construction machine (shovel car) so as to be inconspicuous.

The sensor input means 4a includes the device 1
Is provided with a sensor mechanism for sensing a state of a signal provided outside the device.

FIG. 2 shows the structure of the sensor 2 provided outside. The sensor input means 4a of the main body 1a is provided with a Hall sensor S1, a battery sensor S2, and a power sensor S3, each of which has a target and a target. Permanent magnet S1a
And the signals from the vehicle battery BV and the GPS receiver 3 are sensed.

The hall sensor S1 shown in FIG. 3 has a hall element S1b inside the sensor and detects the presence or absence of the permanent magnet S1a embedded in the cabin body 50 shown in FIG. The sensor signal of this Hall element S1b is supplied to an amplifier (AM
P), the signal is pulled down to the L (low signal) level, and is input to the controller 4 as the interrupt signal A1.

Therefore, when the permanent magnet S1a is forcibly separated from the sensor S1, the sensor signal is cut off, and the output of the AMP is opened. Therefore, with the removal and blocking of the permanent magnet S1a, it can be determined that the vehicle (equipment) on which the machine 1 has just been mounted is in danger of being stolen.

Here, the jumper JA indicated by 4d in FIG.
The sensor selection switch 1 is jumpered on the S side in the figure, and a sensor signal output appears at A1. Meanwhile C
The sensor S1 is invalidated when a jumper is performed on the side.

Further, the battery sensor indicated by S2 in FIG. 4 (a) detects the interruption signal A via the fuse F1 from the battery voltage of the battery BV provided in the shovel car.
Entered as 2.

Normally, the battery voltage is input to the battery cell 8 via the diode D1, the resistor R, and the fuse F2, and the operating power supply V of the main unit 1 via the diode D1.
Is supplied as

Here, if the battery line is cut off at the position indicated by Q2 in the figure, A2 is opened, an interrupt is generated, and the supply of power is stopped. Thus, the power stored in the battery cell 8 is supplied as backup power for the main unit 1 through the fuse F2 and the diode D2.

As described above, it is determined that the vehicle (equipment) on which the apparatus 1 is mounted is now in danger of being stolen by the interruption of the power supply.

Here, the sensor selection switch of the jumper JA2 indicated by 4d in FIG. 4A is jumpered on the S side in the figure, and a sensor signal output appears at A2.
On the other hand, when the jumper is jumped on the C side, the sensor S2 is invalidated.

Further, the power sensor indicated by S3 in FIG. 4B is a sensor for detecting the power supplied to the GPS receiving antenna 3a and the GPS receiver 3b.

Here, the power supply V is supplied to the GPS receiver 3b via the resistor R, and the load (GPS receiving antenna 3a + GPS receiver 3b) current i flows, so that the normal transistor TR is turned on. . Therefore, the output A3 of the transistor TR is normally pulled to the power supply V.

On the other hand, the GPS receiving antenna 3a or the GP
If the power consumption of one or both of the S receivers 3b decreases (for example, when the power is cut off at the position indicated by Q3 in the figure),
The load current i decreases, the potential between the base and the emitter of the transistor TR decreases, and the transistor TR turns off.

Then, the power sensor S3 detects that either the GPS receiving antenna 3a or the GPS receiver 3b has been cut off, and the interrupt signal indicated by A3 in the figure is opened to generate an interrupt. This error is GP
Since this means that the S function has been lost, it is necessary to transmit and output position data, an error number, and the like from the last sampled data that has already been sampled.

Here, the sensor selection switch of the jumper JA3 shown by 4d in FIG. 4B is jumpered on the S side in the figure, and a sensor signal output appears at A3.
On the other hand, when the jumper is jumped on the C side, the sensor S3 is invalidated.

As described above, by detecting an abnormal situation with a sensor signal, it becomes difficult to normally track the location, for example, when a thief knows the existence of the machine 1 and removes the machine 1. At this timing, it is determined that an abnormal situation has occurred.

The GPS receiving antenna 3a is composed of a plurality of GPS orbits which make a circular orbit of about 20,000 km on the earth in about 12 hours.
Satellite signals (signals called C / A codes subjected to spread spectrum modulation) transmitted from the artificial satellite 20 are received. The received signal e is input to the GPS receiver 3b, and the data output from the GPS receiver 3b is converted by the controller 4 into position data X, Y or the like.

The principle of this GPS receiver is described in, for example, JP-A-5-281330 and JP-A-5-7231.
No. 6 or GPS introduction guide: Since it is introduced in Nikkan Kogyo Shimbun, etc., a detailed description is omitted in this application for the sake of writing.

The controller 4 automatically establishes a line connection in response to an external telephone call, or determines the state of a sensor signal obtained from the sensor input means 4a and the value of position data in advance by the above-described method. Switch 4b
Is output to the control terminal 5d of the mobile phone 6 as to whether the line is automatically connected to the telephone line set in the above step.

The switch 4b indicated by oblique lines in FIG.
Once set at the time of delivery, the data (telephone number D1, terminal number N1, range data X1,
Y1 and the moving distance Z1) are saved, and thereafter, may be removed unless data is changed.
Further, although the controller 4 is omitted in FIG.
ROM, RAM, EEPROM, I / O, etc.
Automatically controls line connection and data transmission. Therefore, data such as Z1 indicating the moving distance per unit time may be set in a ROM or the like in advance.

The case where the mode for outputting the audio data is selected by the jumper switch 4c will be described below.

When the mode for outputting the audio data is selected, the signal conversion means 5 shown in FIG.
The audio data is output via a and 5b.

The output of the position data X, Y and the like is converted into a signal (sound) of a predetermined format which can be transmitted and output from the earphone jack 5c of the mobile phone 6.
Is output after being processed once.

Therefore, when the abnormal state described above occurs, first, the controller 4 refers to the data (position data X, Y, etc.) periodically read from the GPS receiver 3b and determines the predetermined data (position data X, Y, etc.). Terminal number, time, east longitude, north latitude, altitude, error number), and outputs preset telephone number data D1 to the control terminal 5d of the mobile phone 6 via the mobile communication modem 5c, and automatically outputs it. Make a line connection (call).

When the telephone line is connected, an address map that matches the voice data in the voice synthesis memory (ROM 5a) is calculated from the output data, and the voice synthesis IC 5b is accessed to sequentially set the address of the ROM 5a. , ROM 5a sequentially outputs designated data. This data is read into the voice synthesis IC 5b and restored to an analog signal.

For example, if the numerical data is 50.0, the controller 4 first obtains the address where the voice data of "go" is stored, and then sequentially obtains "10", "Ten", and "Zero". The address of the voice data corresponding to the numerical data is output to the voice synthesis IC. After the data of the ROM 5a stored at this address is sequentially read out by the voice synthesis IC 5b and converted into an analog signal (voice signal),
It is output to the module jack 5c of the mobile phone 6.

Data transmitted and output from the antenna 6a of the mobile phone 6 via the wireless telephone line L in the form of an analog voice signal (the data transmission format is the type of the mobile phone 6 (analog transmission type, digital transmission type)
Depends on. ) Shows the telephone number D1 set in advance in FIG.
Is output as voice from the receiver 40a of the telephone indicated by reference numeral 40.

In the called telephone 40, the receiver 40a
From "here (terminal number N1) ...", "time ...
"", "North latitude ...", "East longitude ...", "Altitude ...
・ ”,“ Error ... ”can be heard directly by voice.

As described above, the abnormality can be automatically detected, and the location and error number can be automatically transmitted and output immediately. Therefore, the receiver who has received the error number can recognize "where" and "what happened", and can immediately take an antitheft countermeasure action to prevent theft.

On the other hand, the function of automatically making a line connection in response to an external telephone call controls an effective means for tracking the machine 1 which has become completely unknown.

For example, when a shovel car on which the machine 1 is mounted is stolen by a tow truck or the like without an abnormal condition, the owner of the shovel car first calls the mobile phone 6 from a general subscriber telephone (telephone). multiply).

Accordingly, the controller 4 detects a call signal from the control terminal 5d of the mobile phone 6 via the mobile communication modem 5c and automatically connects the line.

Then, by referring to data (position data X, Y, etc.) periodically read from the GPS receiver 3b, predetermined data (terminal number, time, east longitude,
(North latitude, altitude, error number) and an address map matching the voice data in the voice synthesis memory (ROM 5a) from each output data.
5b is accessed to output voice data to the telephone connected to the line in the same manner as described above. In this case, the error number is “0” or omitted.

As described above, even if the location of the machine 1 is completely unknown, the unknown machine 1 is called and the location of the machine 1 itself is automatically determined via the wireless telephone line. Transmission output can be performed immediately.

Although a detailed description is omitted for the sake of convenience in writing, a configuration may be adopted in which a command sent from a telephone connected to a line is analyzed and operation is performed according to the command.

On the other hand, when the controller 4 detects that the position data X, Y, etc. obtained from the GPS receiver 3b (GPS sensor 3) cannot be read at all, the GPS receiving antenna 3a is turned off. It is determined that it has been destroyed, and is determined to be in an abnormal state. Therefore, similarly to the above-described abnormal processing of the sensor signal, the line is automatically connected to the telephone line (telephone number D1) set by the switch 4b in advance.

Further, the amount of change in the position data X, Y is calculated, and even when the magnitude of the moving distance Z per unit time is larger than a preset value Z1, the vehicle is carried by a tow truck or the like. It is determined that the state is present, and abnormal processing is performed as described above.

Further, even when the position data X and Y are beyond the preset ranges X1 and Y1, it is determined that they have been carried by a tow truck or the like from an unmanned construction site, and the same as above. Abnormal processing is being performed.

As described above, from the position data X and Y read by the GPS sensor (GPS receiving antenna 3a + GPS receiver 3b) 3, it is detected that the vehicle is stolen, and it is determined that the vehicle is abnormal. The line is automatically connected to the set telephone line (telephone number D1).

Next, a brief description will be given of a case where a mode for outputting FAX data is selected by the jumper switch 4c.

When the mode for outputting the facsimile data is selected, the signal conversion means 5 shown in FIG.
The fax data is output via the terminal c.

Then, position data and the like are transmitted and outputted as character data to a device having a FAX function via the wireless telephone line L.

In this case, in the anti-theft terminal 1, the transmission output of position data such as longitude and latitude performed by the mobile communication modem 5c is performed by FAX data.

Therefore, the controller 4 refers to the data (position data X, Y, etc.) periodically read from the GPS receiver 3b and determines predetermined data (terminal number, time, east longitude, north latitude, altitude). , An error number), an address map that matches the FAX data is calculated from the output data, and the data of the memory address is transferred to the mobile communication modem 5c using a haze AT command or the like.
Output to

The mobile communication modem 5c has a preset F
The line is automatically connected to the AX number D1, and error correction and data compression are performed.
Outputs X data.

Reference numeral 41 shown in FIG. 6 denotes a facsimile apparatus provided at the transmission destination line number (telephone number D1).

The FAX paper 41a has N (terminal number N).
1) = ..., "T (time) = ...", "X (north latitude) = ...", "Y (east longitude) = ...", "H (altitude) = ..." , "E (error) = ..." are sequentially printed.

As described above, in this mode, reliable position data X and Y can be easily transmitted to any other party by FAX data that cannot be processed by humans, not by verbal transmission lacking in reliability.

In this embodiment, an example is shown in which N (terminal number), T (time), X (north latitude), Y (east longitude), H (altitude), and E (error) are transmitted and output. If at least position data indicating latitude and longitude such as X (north latitude) and Y (east longitude) are included, data such as a moving direction may be added, or a format of any combination may be used. In addition, the GPS antenna 3a and the GPS receiver 3b indicated by a dotted line portion 3 in FIGS. 1 and 6 may be a separated type or an integrated type. Further, the example in which the power sensor S3 senses the load power (current) of the GPS receiver 3b has been described.
It may be one that senses only the power a (current or voltage). Also, the mobile communication modem 5c
The signal converting means 5 such as the voice synthesizer 5a and the voice synthesizing function 5a and 5b may have a configuration in which the function is provided in the controller 4 or the GPS receiver 3b. That is, the present invention is not limited to the above embodiments, and various modifications are possible based on the spirit of the present invention, and these are not excluded from the scope of the present invention.

[0091]

According to the present invention, accurate position data is transmitted as necessary without human intervention to specify the location of an object, and an error situation is immediately detected to automatically transmit error information. It is possible to provide a terminal that outputs and prevents a thing from being stolen.

Further, error information can be transmitted and output in a combination suitable for the intended use, and an abnormal state can be recognized from the value of the position data to prevent theft.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram showing an external sensor.

FIG. 3 is a block diagram showing a Hall sensor.

FIG. 4 shows (a) a circuit diagram of a battery sensor and (b) a circuit diagram of a power sensor, which are other sensors.

FIG. 5 is a conceptual diagram showing an example of audio output.

FIG. 6 is a conceptual diagram showing a facsimile output example.

FIG. 7 is a configuration diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Anti-theft terminal 2 Sensor S1 Hall sensor S2 Battery sensor S3 Power sensor 3 GPS sensor 3a GPS receiving antenna 3b GPS receiver 4 Data control means (controller) 4a Sensor input means 4b Digital switch 4c Mode selection means (jumper switch) 4d Sensor selection means (jumper switch) 5 Signal conversion means 5a Voice synthesis memory (ROM) 5b Voice synthesis IC 5c Mobile communication modem 6 Mobile phone 7 Battery battery 20 GPS satellite e Satellite signal X, Y Position data (latitude X, longitude) Y) L wireless telephone line

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification code FI H04B 7/26 109T

Claims (6)

[Claims] 1. A portable telephone using a wireless telephone line, a GPS receiving antenna for receiving signals from a plurality of GPS satellites, and a position data by calculating its own position from satellite signals received by the GPS receiving antenna A GPS receiver for converting the data into a signal, a sensor input means for inputting a sensor signal from a sensor for detecting an abnormal state, and reading at least position data indicating its own position from the GPS receiver, and determining whether or not the value of the position data indicates an abnormal state. Data control means for determining whether or not data is input and output, and signal conversion means for converting position data input from the data control means into a signal of a predetermined format that can be transmitted and output via a portable telephone. Automatically connect the line at least according to the call, or change the state of the sensor signal obtained from the sensor input means. An anti-theft terminal characterized in that it automatically connects to a preset telephone line based on the determination of the state and the value of position data, and transmits and outputs position data via a wireless telephone line. 2. A signal converting means for converting a signal into a signal of a predetermined format which can be transmitted and output is transmitted or output in a facsimile data format from a portable telephone via a mobile communication modem function or via a voice synthesizing means. 2. The anti-theft terminal according to claim 1, further comprising a mode selecting means for selecting which mode of transmitting and outputting the analog audio signal format from the portable telephone. 3. A sensor signal obtained from the sensor input means is a signal for detecting an installation state of an apparatus body on which the apparatus is installed and the apparatus body, or a signal for detecting power supplied to the apparatus.
A signal for detecting the power supplied to the GPS receiving antenna,
3. The anti-theft terminal according to claim 1, further comprising a sensor selection unit for selecting which one of a signal for detecting power supplied to the GPS receiving antenna and a signal supplied to the GPS receiver. 4. The anti-theft terminal according to claim 1, wherein the position data obtained from the GPS receiver is determined to be abnormal when no data is obtained. 5. An abnormal state is determined when the position data obtained from the GPS receiver is in a state where the magnitude of the moving distance per unit time is larger than a preset value. The described anti-theft terminal. 6. The anti-theft terminal according to claim 1, wherein the position data obtained from the GPS receiver is determined to be abnormal when the position data exceeds a preset range.