JP2001273576A - Remote monitoring device for mobile body temperature - Google Patents

Abstract

PROBLEM TO BE SOLVED: To report a situation inside a mobile body when temperature has been changed in the mobile body. SOLUTION: The temperature in a vehicle is measured by a temperature sensor 10 arranged in a transmitter 2. When a temperature measuring signal from the sensor 10 exceeds a reference temperature signal, a voice in the vehicle collected by a microphone 8 provided in the transmitter 2 is transmitted to a receiver 4 carried by a passenger who leaves the vehicle and amplified from a speaker 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature remote monitoring device for informing a occupant of a moving body such as a vehicle or a ship, for example, a passenger at a position remote from the moving body, for example, a temperature of a passenger compartment. About.

[0002]

2. Description of the Related Art Generally, a moving body, for example, a vehicle is parked and locked when a passenger leaves the vehicle, so that the passenger compartment is a closed space. If the passenger compartment is left for a long time in this state, the temperature of the passenger compartment becomes abnormally high in the midsummer and abnormally low in the midwinter. If the infant or infant is left in the passenger compartment, there is a possibility that the life of the infant or infant may be affected. This causes a similar problem not only in vehicles but also in small boats and the like. 2. Description of the Related Art Conventionally, there is an apparatus that detects temperature and vibration inside a vehicle to notify an abnormality in a passenger compartment.

[0003]

However, when an abnormality is reported in the passenger compartment, it is only possible to know that there is an abnormality, and it is not possible to recognize what the current state is.

[0004] It is an object of the present invention to provide a remote monitoring device for a temperature of a moving body, which can notify a situation inside the moving body when a temperature changes in the moving body.

[0005]

SUMMARY OF THE INVENTION A temperature monitoring device for a moving object according to the present invention has a temperature measuring means for measuring the temperature of the sealable space of a moving object having a sealable space. Examples of a moving object having a space that can be sealed include a vehicle and a small boat in which the interior of the vehicle and the cabin are closed by locking. The temperature measuring means may be provided directly in the sealable space, or may be provided outside the sealable space,
It is also possible to indirectly measure the temperature in the sealable space. Comparing means is provided for generating an output signal when the temperature measuring signal from the temperature measuring means exceeds a reference temperature signal. The comparing means generates an output signal when the temperature measurement signal is equal to or higher than the reference temperature signal, or generates an output signal when the temperature measurement signal is equal to or lower than the reference temperature.
Or both. In both cases,
Of course, two different types of reference temperature signals are used. Monitoring means for monitoring the state of the sealable space is provided. The monitoring means may be a sound collecting means for collecting sound in the closed space, an image pickup means for picking up an image of the sealable space, or both the sound collecting means and the image pickup means. In response to the output signal, transmission means is provided for transmitting an alarm signal based on the monitoring signal from the monitoring means to a receiver carried by the occupant of the mobile object.

[0006] With this configuration, even when the occupant is away from the moving object, the alarm signal for notifying the current state of the enclosing space when the measured temperature exceeds the reference temperature even if the occupant is away from the moving object. Can be received by the receiver carried by the occupant, and the current condition of the sealable space can be confirmed from a remote position. Therefore, even when an infant is left in the sealable space, if the temperature of the sealable space exceeds the reference temperature, the current state of the sealable space can be grasped and appropriate measures can be taken immediately.

[0007] The transmitting means may transmit a signal for generating an audible sound in the receiver before the alarm signal. Note that, as a signal for generating an audible sound in the receiver, an audible sound may be generated on the transmission means side, and the carrier may be modulated with the audible sound, or an audible sound generation device may be provided on the receiver side, A control signal for activation may be transmitted by the transmission means. With such a configuration, first, it is possible to recognize from the audible sound that the temperature in the sealable space exceeds the reference temperature due to the generation of the audible sound, and then it is possible to grasp the current situation in detail by the alarm signal.

[0008] The transmission of the alarm signal is stopped after a lapse of a first time from the generation of the output signal of the comparison means, and the alarm signal is transmitted from the transmission means after a lapse of a second time. A loop means that repeats the operation until a release command is supplied can be provided. With this configuration, for example, even if the user does not notice that the alarm signal is being transmitted during the first time, the alarm signal is transmitted again after the lapse of the second time. Since the operation is continued until the power is supplied, it is possible to reliably know that the alarm signal is being transmitted.

[0009] The reference temperature signal may be settable. In this case, when the set reference temperature signal is larger than the current temperature measurement signal of the temperature measurement means, the comparing means generates an output signal when the temperature measurement signal becomes equal to or more than the set reference temperature signal. Set to
When the set reference temperature signal is smaller than the current temperature measurement signal of the temperature measurement means, the comparison means is set to generate an output signal when the temperature measurement signal falls below the set reference temperature signal. Setting means for performing the setting is provided. With this configuration, if a temperature higher than the current temperature is set as the reference temperature, an alarm signal is automatically generated when the measured temperature exceeds the reference temperature, and a temperature lower than the current temperature is set as the reference temperature. When the temperature is set, an alarm signal is automatically generated when the measured temperature becomes lower than the reference temperature. Therefore, it is not necessary to set so as to generate an alarm signal when the temperature is equal to or higher than the reference temperature, to generate an alarm signal when the temperature is equal to or lower than the reference temperature, or to change the setting each time.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A temperature remote monitoring device according to one embodiment of a moving object according to the present invention comprises, as shown in FIG.
And a receiver 4.

The transmitter 2 is disposed in a space that can be hermetically closed by a moving body, for example, in a room of a vehicle such as an automobile. The transmitter 2 has a substantially rectangular parallelepiped housing 6, and in front of the housing 6,
Monitoring means, for example sound collecting means, specifically the microphone 8
Is provided. The microphone 8 collects sound generated inside the vehicle.

A temperature measuring means is provided on one side of the housing 6.
For example, a temperature sensor 10 is provided. Temperature sensor 1
0 is for measuring the temperature in the cabin of the vehicle and generating a temperature signal representing the temperature.

On the side of the microphone 8, a reference temperature signal setting button 12 for comparison with a temperature signal is provided, and on the side thereof, the temperature currently measured by the temperature sensor 10 and the reference temperature are set. Is provided on the display unit 14 for displaying.

A release button 16 is provided below the setting button 12. This is operated when generating a release command signal for stopping transmission of the alarm signal to the receiver 4 as described later.

As shown in FIG. 2, the transmitter 4 has a microcomputer 18 in the housing 6, which includes a temperature signal from the temperature sensor 10, a reference temperature signal by operating the setting button 12, and a reset signal. A release command signal by operating the button 16 is supplied.

An audible sound generator, for example, a low-frequency oscillator (LFO) 20 is also provided in the housing 6. The low-frequency oscillator 20 is turned on when an activation signal is supplied from the microcomputer 18. Generates an audible sound signal of high frequency. The audible sound from the low-frequency oscillator 20 is supplied to a selection means, for example, a contact 22 a of a changeover switch 22. A sound signal from the microphone 8 is supplied to a contact 22b of the changeover switch 22, and a contact 22c of the changeover switch 22 is selectively connected to one of the contacts 22a and 22b. The switching of the changeover switch 22 is controlled by the microcomputer 18.
This is performed by the switching control signal from.

An audio signal from the microphone 8 is supplied to the transmission unit 24 via the changeover switch 22, and modulates a carrier having a predetermined frequency to generate an alarm signal. This alarm signal is transmitted from the antenna 26 provided on the side of the housing 6 to the receiver 4 as shown in FIG. Also, the audible sound signal is transmitted via the changeover switch 22 to the transmitting section 24.
, Which modulates the carrier to generate a broadcast signal. When the reference temperature is set, the set temperature is displayed on the display unit 14.

As shown in FIG. 1, the receiver 4 has an antenna 28 and a receiving circuit (not shown) therein, and demodulates a received alarm signal or notification signal.
Loud sound from 0. The receiver 4 has a built-in rechargeable battery 32.
Driven by the operating power from the

The charging of the rechargeable battery 32 is performed by the charging circuit 36 shown in FIG. 2 when the receiver 4 is arranged in the recess 34 provided on the upper surface of the housing 6 of the transmitter 2. In addition,
Although not shown, the microcomputer 18 checks the voltage of the rechargeable battery 32 of the receiver 4 disposed in the recess 34. When charging is not necessary, the display on the display unit 14 is turned on, and the charging is performed. Is required, the display on the display unit 14 flashes, and when the rechargeable battery 32 is not charged, the display on the display unit 14 is turned off.

Power supply to the charging circuit 36 and power supply to the microcomputer 18, the display unit 14, the transmission unit 24, and the like are performed from the power supply unit 38. As shown in FIG.
Power is supplied from a cigarette connector (not shown) provided in the vehicle via a cigarette jack 40 as shown in FIG. Note that a rechargeable battery may be provided inside the transmitter 2 and charged from a cigarette connector via the cigarette jack 40.

Note that both the transmitter 2 and the receiver 4 have ID switches 41 and 42, and the same ID number is set for each. As a result, the alarm signal and the notification signal from the transmitter 2 are reliably received by the receiver 4, and the receiver 4 is prevented from erroneously receiving a signal from another transmitter.

In the remote monitoring device configured as described above,
When the occupant leaves the vehicle, particularly when leaving the infant in the vehicle, the setting button 12 is operated to set a reference temperature signal representing the reference temperature.

The microcomputer 18 determines whether the set reference temperature signal is larger or smaller than the measured temperature signal indicating the vehicle interior temperature detected by the current temperature sensor. The microcomputer 18 has a comparison function. When the set reference temperature signal is higher than the current measurement temperature signal, the microcomputer 18 outputs the comparison function when the measured temperature signal becomes higher than the reference temperature signal. A first mode for generating a signal is provided, and a second mode for generating an output signal when the measured temperature signal becomes lower than the reference temperature signal when the reference temperature signal is lower than the current measured temperature signal. As described above, the comparison function can be automatically set by setting the reference temperature, so that it is not necessary to individually set the comparison function.

After setting as described above, the receiver 4 is taken out of the recess 34, carried, and separated from the vehicle. Thereafter, the processing shown in FIG.
8. In this process, the first and second timers are used. The first timer is for determining whether a first time has elapsed from the time when the measured temperature has exceeded the reference temperature, and the second timer is for notifying the notification time since the time when the measured temperature has exceeded the reference temperature. (The notification time is set to be shorter than the first time.) At the beginning, both timers are reset.

First, it is determined whether the measured temperature signal has exceeded the reference temperature signal. That is, it is determined whether the measured temperature signal is equal to or higher than the reference temperature signal in the first mode, and whether the measured temperature signal is equal to or lower than the reference temperature signal in the second mode (step S2). If this determination is NO, step S2 is repeated until the determination is YES.

If the decision result in the step S2 is YES, the microcomputer 18 starts counting a first timer (step S4). Then, it is determined whether or not the second timer has expired (step S6). If it is determined that the time is not up, the low-frequency oscillator 20 is operated, the contact 22c of the changeover switch 22 is switched to the contact 22a, and a low-frequency signal from the low-frequency oscillator 20 is output to the transmission unit 24. (Step S8).

As a result, the notification signal is transmitted to the receiver 4 and an audible sound is emitted from the speaker 30 of the receiver 4. Therefore, the person who carries the receiver 4 knows that the temperature inside the vehicle is the first.
In this mode, it can be known that the temperature is higher than the reference temperature, and in the second mode, it is lower than the reference temperature.

Thereafter, the second timer measures the time (step S10). Then, it is determined whether the second timer has expired (step S12). If it is determined that the time has not elapsed, the process proceeds from step S4 to step S4.
Twelve loops are performed until the time is up. Therefore, the audible sound continues to be heard from the speaker 20 until the time is up.

When it is determined that the time is up, that is, when it is determined that the notification time has elapsed, the low frequency oscillator 20 is turned off and the contact 22 of the changeover switch 22 is turned off.
c is switched to the contact 22b side (step S1).
4). As a result, the sound collection signal collected by the microphone 8 is transmitted from the transmission unit 24, and the receiver 4 can hear the sound in the vehicle following the notification sound. by this,
For example, it is possible to determine whether or not an emergency is present, based on whether or not a baby's cry can be heard.

Next, it is determined whether the first timer has expired (step S16). If it is determined that the time has not expired, it is determined whether the release button 16 has been turned on (step S18). If it is determined that the release button 16 has not been turned on, steps S4 and S6 are executed. However, in step S6, since the second timer has already expired, the determination in step S6 is YES, and step S16 Is executed. That is, steps S4, S6, S16, S1 until the first timer times out.
8 are executed.

If it is determined that the first timer has timed out (Yes in step S16), that is, if it is determined that the first time has elapsed since the measured temperature exceeded the reference temperature, The first and second timers are reset (step S20), and a standby is performed for a second time, for example, three seconds (step S22). During this time, the microcomputer 18 stops the transmission unit 24.

Thereafter, the process is executed again from step S4. Therefore, after the measured temperature exceeds the reference temperature, an audible sound for notification is received by the receiver 4 over the notification time, and then a sound in the vehicle for warning is received by the receiver 4 when the reference temperature is equal to or lower than the reference temperature. The measurement is continued for, for example, 3 minutes after the measurement temperature is exceeded. Thereafter, for example, after the reception is stopped for three seconds, the audible sound for notification and the sound in the vehicle for warning are received by the receiver 4 again as described above.

Such a repetition state continues until, for example, the person carrying the receiver 4 returns to the vehicle and operates the release button 16. Therefore, the alarm signal and the notification signal are not missed by mistake. Since the release button 16 is provided on the transmitter 2, the transmission of the alarm signal and the notification signal is not stopped by the operation of the receiver 4. Therefore,
Even when an infant is riding in the vehicle, its safety can be ensured.

When the release button 16 is operated, step S1
If it is determined in step 8 that the release button is on, the microcomputer 18 stops the transmission unit 24, resets both timers (step S24), and ends this processing.

Thus, according to this remote monitoring device,
Not only is it notified that the measured temperature has exceeded the reference temperature, but also the state inside the vehicle at that time can be ascertained by an audio signal from a microphone.

In the above embodiment, the audible sound is first generated in the receiver 4 by the notification signal. However, in some cases, the audible sound is not generated, and the alarm based on the sound signal immediately collected by the microphone 8 is generated. The signal may be transmitted to the receiver 4 side. In the above embodiment, the low-frequency oscillator 20 is provided on the transmitter 2 side. However, the low-frequency oscillator 20 is provided on the receiver 4 side, and a signal for operating the low-frequency oscillator from the transmitter 2 is used as a notification signal. May be sent. Although a microphone is used as the monitoring means, for example, an imaging device may be provided in a vehicle and a carrier wave may be modulated based on an image signal from the imaging device to generate an alarm signal, or both the microphone and the imaging device may be used. It may be provided. In the above embodiment, the temperature sensor 10 and the microphone 8 are connected to the housing 6 of the transmitter 2.
However, it may be provided outside the housing 6, for example, in a vehicle compartment, or may be provided in an engine room to measure the temperature in the vehicle compartment. In the above embodiment, a vehicle is shown as a moving body, but the present invention is not limited to this, and can be used in, for example, a small ship.

[0037]

As described above, according to the present invention, when there is a change in the temperature inside the moving body exceeding the reference temperature, the situation inside the moving body is warned to the receiver carrier at a remote position. Can be. Moreover, before notifying the situation inside the moving body, it is also possible to notify by an audible sound that the temperature inside the moving body exceeds the reference temperature. This warning can be repeated. Further, whether to warn when the measured temperature becomes equal to or higher than the reference temperature or to warn when the measured temperature becomes equal to or lower than the reference temperature can be automatically performed by setting the reference temperature.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a transmitter and a receiver of a remote monitoring apparatus for a moving object temperature according to an embodiment of the present invention.

FIG. 2 is a block diagram of the transmitter of FIG. 1;

FIG. 3 is an operation flowchart of the transmitter of FIG. 1;

[Explanation of symbols]

 2 transmitter 4 receiver 8 microphone (monitoring means) 10 temperature sensor (temperature measuring means) 18 microcomputer (comparing means) 24 transmitting circuit (transmitting means)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) H04Q 9/00 301 H04Q 9/00 311J 311 361 361 H04B 7/26 Z F term (Reference) 3D020 BA01 BA06 BA11 BB01 BC01 BE03 5C087 AA10 AA12 AA19 AA32 AA37 AA44 BB20 BB39 BB72 CC48 DD03 DD14 DD16 EE18 FF01 FF04 FF12 FF17 FF30 GG08 GG21 GG30 FF31 FF31 GG83 GG83 5G048 5K101 KK14 LL12 NN14 RR14

Claims (4)

[Claims] 1. A temperature measuring means for measuring a temperature of a sealable space of a movable body having a sealable space, and an output signal is generated when a temperature measurement signal from the temperature measuring means exceeds a reference temperature signal. Comparing means, monitoring means for monitoring the state of the sealable space, and in response to the output signal, an alarm signal based on a monitoring signal from the monitoring means, to a receiver carried by the occupant of the mobile object. A remote monitoring device for monitoring the temperature of the moving object, comprising: a transmitting unit that transmits the temperature. 2. The remote monitoring apparatus for a moving object temperature according to claim 1, wherein the transmitting means transmits a notification signal for generating an audible notification sound at the receiver before the warning signal. Remote monitoring device. 3. The remote monitoring device for a moving object temperature according to claim 1, wherein the transmitting means stops transmitting the alarm signal after a lapse of a first time from the generation of the output signal of the comparing means.
An apparatus for remotely monitoring the temperature of a moving object, comprising: a loop means for repeating transmission of the alarm signal from the transmission means after a lapse of a second time until a release command is supplied. 4. The remote monitoring device for a moving object temperature according to claim 1, wherein the reference temperature signal is configured to be settable, and the set reference temperature signal is set higher than a current temperature measurement signal of the temperature measurement unit. When larger, the comparing means is set to generate an output signal when the temperature measurement signal is equal to or greater than the set reference temperature signal, and the set reference temperature signal is a current temperature measurement signal of the temperature measurement means. A moving body temperature monitoring device having setting means for setting the comparing means so as to generate an output signal when the temperature measurement signal becomes equal to or less than the set reference temperature signal.