JPH0846587A - Push-button pm device - Google Patents

Abstract

PURPOSE:To improve the detecting accuracy of the number of persons by operating a person number sensor in a state where each person is approximately static. CONSTITUTION:A pyroelectric sensor 6 detects the movements of persons within a TV viewing area. A person number sensor control part 11 detects the number of persons included in the TV viewing area by a person number sensor 2 with the timing when the movements of persons are not detected any more right after the sensor 6 detected the movements of persons. Then the number of detected persons is reported to an alarm starting means 12. The means 12 compares the number of detected persons with the number of push-buttons kept in the viewing states among those push-buttons allocated to the subject persons of investigation. When no coincidence is confirmed between these numbers of persons and push-buttons, a speaker 8 is actuated by a speaker driving part 13 to warn the subject persons to operate correctly the push-buttons.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a push button PM (people meter) device for individually measuring a television viewing condition.

[0002]

2. Description of the Related Art A device for measuring a television viewing condition for each individual, such as that proposed in Japanese Patent Application No. 62-130791, is assigned to each surveyed person at the start and end of television viewing. There is a device called a push button PM device that operates a push button.

In this push-button PM device, the person to be surveyed is forced to perform a push-button operation, which is essentially unnecessary.
It is easy for unintentional input mistakes such as forgetting to press a button.
Therefore, the number-of-people detection sensor detects the number of people in the television viewing area, compares the detected number of people with the number of pushbuttons indicating the watching state among the pushbuttons, and issues an alarm if they differ. Attempts have been made to encourage the surveyee to perform the correct operation. As the number-of-people detection sensor, for example, a thin film infrared image sensor system "IS-1" manufactured by Matsushita Electric Industrial Co., Ltd. is used to mechanically horizontally drive a plurality of pyroelectric elements using thin films. A type of sensor is used that measures the temperature distribution in the area, processes the obtained thermal image data, and outputs the number of people, the position of each person, and the like. It should be noted that this type of sensor involves mechanical movements, and therefore, for example, 2
It takes about a second.

[0004]

As described above, by issuing an alarm according to the difference between the output of the number-of-people detection sensor and the state of the push button, it is possible to urge the surveyee to perform a correct operation. Although it is possible to prevent unintentional input mistakes, what must be taken into consideration at this time is a problem due to erroneous detection by the number-of-people detection sensor. That is,
The number-of-people detection sensor is not limited to the example described above. Generally, detection accuracy decreases when a detection operation is performed when a person is moving. Therefore, for example, in a method of starting the number-of-people detection sensor at a certain fixed time interval. , At the time of its activation, it is erroneously detected that a person is moving, and as a result, an erroneous alarm is issued. False alarms are a problem because they not only cause unnecessary stress to the surveyees, but when they are repeated, distrust increases and, in the worst case, the cooperation of the surveys cannot be obtained.

The present invention has been proposed in view of such circumstances, and an object thereof is to reduce the probability of false detection by controlling the detection timing of the number-of-people detection sensor, and to prevent false alarms as much as possible. To do so.

[0006]

In order to achieve the above object, the present invention operates a push button assigned to each person to be surveyed at the time of starting and ending the viewing of a television so that the individual television In a push-button PM device for measuring a viewing situation, a number-of-people detection sensor for detecting the number of people in the television viewing area, a pyroelectric sensor for detecting movement of a person in the television viewing area, and an alarm for urging push-button operation And a warning means for emitting the number of people, and the person detection sensor for detecting the number of people at the timing when the movement of the person is detected by the pyroelectric sensor and immediately thereafter the movement of the person is no longer detected, and the number of people detection sensor for outputting the detected number of people. A control unit, the number of detected persons output from the control unit for detecting the number of persons, and the number of push buttons in the viewing state among the push buttons; Comparison, when different, and a warning activation means for activating the alarm means.

Further, instead of the above-mentioned number-of-people detection sensor control section, the following number-of-people detection sensor control section is also adopted. When the person's movement is detected by the pyroelectric sensor and the person's movement is not detected immediately after that, the number of people is detected by the number of people detection sensor continuously plural times, and the detected number of people is a predetermined number of times. The number of people detection sensor control unit that outputs the number of people detected when they become equal in succession. At the timing when the power of the television is turned on, when the push button is remotely operated by the remote control transmitter, and when the movement of the person is detected by the pyroelectric sensor and immediately after that the movement of the person is not detected, A person detection sensor control unit that outputs the detected number of people when the number of people is detected by the number of people detection sensor continuously plural times and the detected number of people becomes equal to a predetermined number of times consecutively.

[0008]

In the push button PM device of the present invention, the person detection sensor is activated and detected at a timing when the movement of the person is detected by the pyroelectric sensor and immediately thereafter, the movement of the person is not detected. The number of people is detected by the number-of-people detection sensor in a state where is almost stationary.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings.

Referring to FIG. 1, the push button PM of the present invention.
One embodiment of the device is composed of a fixed unit 1 mounted on a television 4, a number-of-people detection sensor 2 connected to the fixed unit 1 by wire, and a remote control transmitter 3. The number of people detection sensor 2 is, for example, the thin film infrared image sensor system "I" manufactured by Matsushita Electric Industrial Co., Ltd.
S-1 "is used.

The front panel of the fixed unit 1 is provided with a display with a touch sensor 5, a pyroelectric sensor 6, an infrared receiver 7 and a speaker 8. As the display unit 5 with a touch sensor, for example, a dot matrix liquid crystal display module (transparent touch switch, with CFL illumination) manufactured by Stanley Electric Co., Ltd. GMF25064ABTW-SA is used.
Etc. are used. Of course, the illumination method of the LCD is not limited to the CFL, but an LED or a lamp may be used, a reflective LCD may be adopted, and a cathode ray tube type may be used.

The display 5 with a touch sensor is controlled so as to take one of two display modes, a PM display mode and a mode other than the PM display mode. A typical example of the modes other than the PM display mode is the clock display mode, but it is also possible to select a mode in which nothing is displayed.

In the clock display mode, only the current time is displayed as shown in FIG. Therefore, at a glance, the fixed unit 1 itself looks like an existing digital table clock.

On the other hand, in the PM display mode, the display is as shown in FIG. In FIG. 3, symbols B1 to B8 on the display 5 with a touch sensor are electronic push buttons assigned to each survey target person, either a portrait of each survey target person or a number assigned to each survey target person. Is displayed on the button surface. Here, the push buttons B1, B2, B5 displaying the portraits are in the ON state, and the push buttons B3, B4, B6 displaying numbers are shown.
.About.B8 indicates an OFF state. If pushbuttons B1, B2, B5 in the ON state are touched with fingers, or if remote control transmitter 3 in FIG.
The status is displayed and numbers are displayed. On the other hand, when the pushbuttons B3, B4, B6 to B8 in the OFF state are touched with a finger or remotely operated by the remote control transmitter 3, the portrait state is displayed in the ON state. Note that FIG. 3 is an example when the surveyed household is a family of eight, and the surveyed households having a smaller number of households have fewer pushbuttons displayed accordingly.

Further, in FIG. 3, a symbol M on the display 5 with a touch sensor is an area for displaying an alarm message for prompting the surveyee to perform a push button operation as necessary. The warning message has "please" in addition to "please press" as shown.

Referring again to FIG. 1, the pyroelectric sensor 6 is
The sensor is widely known as a security sensor and outputs a detection pulse each time a person's movement is detected in the detection area in front of the television 4. Therefore, when a person moves in the detection area, the detection pulse is continuously output, and when the person stops or goes out of the detection area, the detection pulse is not output.
The pyroelectric sensor 6 is used for starting the person number detecting sensor 2.

The speaker 8 is provided to emit a sound alarm to prompt the surveyee to operate the push button. That is, in this embodiment, the alarm is issued by both the sound from the speaker 8 and the alarm message from the display 5 with a touch sensor. It should be noted that other alarm means such as blinking of an alarm lamp can be used.

The remote control transmitter 3 is a device for remotely operating the pushbuttons assigned to the surveyed person, and is provided with a button for each surveyed person. When the button is pressed,
It has a function of transmitting a personal identification code corresponding to the pressed button by infrared rays. The transmitted infrared individual identification code is received by the infrared receiver 7 of the fixed unit 1, and the push button state corresponding to each surveyed person is changed as described later.

FIG. 4 is a block diagram showing an example of the internal structure of the fixed unit 1. In the figure, the touch sensors 5a,
The key discriminator 5c, the LCD 5b, and the display control unit 5d constitute the display 5 with a touch sensor shown in FIG. The LCD 5b has, for example, 64 × 256 pixels, and an arbitrary figure or character can be drawn by controlling ON / OFF of each pixel by the display control unit 5d. The touch sensor 5a is mounted on the front surface of the LCD 5b, the display surface of the LCD 5b is divided into, for example, 4 × 8 cells, and each cell is used as an independent key. The key discriminator 5c discriminates a touched push button from the user's touch position (touched cell) on the touch sensor 5a and a predetermined push button position, and has a logic one-to-one correspondence with each push button. Among the "1" pulses a1 to a8, the pulse corresponding to the above-mentioned determined push button is output. In addition, the display control unit 5d is an LC
A portion for displaying the PM display mode and the clock display mode on the D5b.
1, a PM screen creating section 52, a PM screen memory 53, a clock screen creating section 54, a clock screen memory 55, a selector 56 and a display driver 57.

Further, the code discriminator 16 is a portion for discriminating the personal identification code received by the infrared receiver 7, and is a pulse "b1" to "b8" of logic "1" corresponding to each push button one to one.
Among them, the pulse corresponding to the push button determined above is output. The output pulses b1 to b8 are output to the person detection sensor control unit 11 and the key discriminator 5c.
Push pulse state holding unit 17 together with the output pulses a1 to a8 of
Is output to

The push button state holding unit 17 includes flip-flops F1 to F8 and OR gates 171 to 178, which correspond one-to-one with the push buttons assigned to the person to be surveyed. The flip-flops F1 to F8 are OR gates 1.
The inversion operation is performed each time a pulse of logic "1" is input from 71 to 178. Output pulses a1 to a8 of the key discriminator 5c and output pulses b1 to b8 of the code discriminator 16 are input to the OR gates 171 to 178. The outputs of the flip-flops F1 to F8 are the alarm activation means 1
2, display control unit 5d, viewing situation data creation unit 2
It is output to 0.

The TV power supply ON detector 15 is a part for detecting the power supply state of the TV 4 in FIG. 1, and the detection output thereof is input to the people detection sensor control section 11 together with the output of the pyroelectric sensor 6.

The number-of-people detection sensor control section 11 detects the number of people by the number-of-people detection sensor 2 when the television 4 is powered on, when the push button is remotely operated by the remote control transmitter 3, and when the person's movement is detected by the pyroelectric sensor 6. The part that notifies the alarm activation means 12 of the result. The number-of-people detection sensor control unit 11 includes OR gates 111, 1
12, 113, retrigger timer 114, start signal generator 115, rising edge detector 116, control unit 11
7, a selector 118, two registers 119 and 11A, and a comparison unit 11B.

The alarm activation means 12 compares the detected number of people notified from the number-of-people detection sensor control section 11 with the number of push buttons in the viewing state obtained from the output of the push button state holding section 17, and makes a difference. In this case, it is a means for activating an alarm, and is composed of a number-of-people calculation unit 121 and a number-of-people comparison unit 122.

The display mode switching control section 14 is a section for generating a signal for switching the display on the LCD 5b by the display control section 5d between the PM display mode and the clock display mode. The AND gate 141, the OR gate 142 and the retrigger timer 143 are used. It is configured.

The speaker drive section 13 is means for issuing a sound by issuing a predetermined sound from the speaker 8.

The viewing situation data creating section 20, the memory 21, and the terminal controller 22 are sections for creating individual viewing situation data and sending it to a center (not shown). A known television sensor 19 for detecting channel information in the off state and channel selection, push button state holding section 17, clock mechanism 18
The terminal controller 22 is connected to a telephone line (not shown).

Hereinafter, detailed functions of each part of this embodiment will be described through the entire operation.

The TV power ON detector 15 shown in FIG.
Logic "1" while the TV 4 of the
Is output, and the power of the TV 4 is turned off,
Its output is logic "0". TV power ON detector 1
The output of No. 5 is input to the rising detector 116 of the person detection sensor control unit 11 and also to one input terminal of the AND gate 141 of the display mode switching control unit 14.

The retrigger timer 143 of the display mode switching control unit 14 receives the logical "1" from the AND gate 141.
Each time the pulse is output, the output is set to logic “1” for a predetermined period (for example, 60 seconds) from that point. The output of the retrigger timer 143 is given to the selector 56 of the display control section 5d as a switching control signal.

The selector 56 selects the PM screen memory 53 side during the period in which the switching control signal from the display mode switching control unit 14 shows the logic "1", and selects the clock screen memory 55 during the other periods. .

The clock screen creation unit 54 of the display control unit 5d updates the contents of the clock screen memory 55 in accordance with the current time output from the clock mechanism 18, thereby displaying a time image indicating the current time in the clock screen memory 55. (Fig. 2
When the selector 56 is switched to the clock screen memory 55 side, the display driver 57 displays the contents of the clock screen memory 55 on the LCD 5b, thereby touching. The current time is displayed on the display with sensor 5.

On the other hand, the EEPROM 51 stores the number of members of the family of the surveyed household, the pattern of each person's portrait, etc., and the PM screen creating section 52 stores the EEPROM 5 in the EEPROM 5.
The contents of the PM screen memory 53 are updated based on the information in 1 and the state of each push button output from the push button state holding unit 17. That is, for example, when the number of family members in the surveyed household is 8 and only the pushbuttons corresponding to the first, second, and fifth surveyed persons are currently on, the PM screen memory 53 An image of each push button as shown in FIG. 3 is created. Further, as will be described later, when there is a request for outputting an alarm message from the alarm activation means 12, the alarm message as shown in FIG. 3 is created in the PM screen memory 53 for a fixed time. Selector 56 is PM
When the display memory 57 is switched to the screen memory 53 side, the display driver 57 displays the contents of the PM screen memory 53 on the LCD 5b, so that an image such as a push button is displayed on the display unit 5 with a touch sensor as shown in FIG. It

(1) Power OFF Period of TV 4 When the power of the TV 4 of FIG. 1 is OFF, the output of the TV power ON detector 15 is logic "0", and the AND gate 1
41 is closed, logic "1" is not output from the retrigger timer 143, and the selector 56 selects the clock screen memory 55 side. Therefore, the display 5 with a touch sensor is in the clock display mode, and only the current time is displayed as shown in FIG.

(2) When the power of the TV 4 is turned on When the power of the TV 4 is turned on, it is turned on.
Detected by the detector 15, its output changes from logic "0" to logic "1", a pulse of logic "1" is input from the rising detector 116 to the retrigger timer 114 through the OR gates 112 and 113, and It is input to the other input terminal of the AND gate 141 via 112 and the OR gate 142 of the display mode switching control unit 14.

Since the AND gate 141 is opened when the TV power ON detector 15 detects that the power of the TV 4 is turned ON, the logic "1" pulse output from the OR gate 142 passes through the AND gate 141 and passes through the retrigger timer. 1
43, and the output of the retrigger timer 143 becomes logical "1" for a fixed time. As a result, the selector 56 of the display control unit 5d selects the PM screen memory 53 side for a certain period of time, and the display 5 with a touch sensor enters the PM display mode for displaying the push button image as shown in FIG. The state of the push button image displayed on the display with touch sensor 5 at this time is determined by the contents of the push button state holding unit 17 at that time.

On the other hand, the number of people detection sensor control section 11
When a pulse of logic "1" is input from the OR gate 113, the re-trigger timer 114 sets its output to logic "1" for a predetermined time, and the start signal generator 115 at the subsequent stage outputs the output of the re-trigger timer 114. Outputs the number-of-people detection start signal at the timing of falling from logic "1" to logic "0". In addition, the retrigger timer 11
When 4 receives a pulse of logic "1", the time for continuously outputting logic "1" is set to the time of T seconds + α, where T seconds is the detection operation time per person detection sensor 2. It The number-of-people detection start signal is sent to the number-of-people detection sensor 2 through a wire and is given to the controller 117, and the number-of-people detection sensor 2 performs one-time number detection operation in response to the signal.
The detected number of persons and position information of each person are returned to the fixed unit 1 via a wire. Further, when the control unit 117 receives the number-of-people detection start signal in the standby state, it starts the processing shown in FIG.

First, the control unit 117 switches the selector 118 to the one register 119 side (S1), and waits for the detection output from the number-of-people detection sensor 2 to be transmitted (S).
2). When the detection output is received, the detection output is stored in the register 119 via the selector 118 (S
3) The selector 118 is switched to the other register 11A side (S4), and a restart pulse is output to the retrigger timer 114 through the OR gate 113 (S5). As a result, the start signal generator 11 can be restarted after a certain period of time.
A person detection start signal is output from 5, and the person detection sensor 2
Performs the number of people detection operation once again and returns the detection result. When the detection output is transmitted from the number-of-people detection sensor 2 (YES in S6), the control unit 117 stores the transmitted detection output in the register 11A via the selector 118 (S7), and the selector 118 is reregistered. After switching to the 119 side (S8), the comparison unit 11B is activated (S9). The comparison unit 11B includes both registers 119 and 11A.
When the numbers of detected persons are the same and the positions of the persons are almost equal, the control unit 117 is notified of a comparison match signal including the detected number of persons who match, and otherwise the control unit 117 outputs a comparison mismatch signal. To notify. The control unit 117 receives the comparison match signal from the comparison unit 11B (YE in S10).
S), the detected number of persons included therein is output to the alarm activation means 12, and this processing is ended.

When the comparison disagreement signal is received from the comparison unit 11B (NO in S10), the control unit 117 outputs a restart pulse to the OR gate 113 again (S5).
Then, it waits for the detection output from the number-of-people detection sensor 2 to be sent (S6).
The data is stored in the register (in this case, the first register 119 is set because it has already been switched) via S8 (S7), the selector 118 is switched again (S8), and the comparison unit 11B is activated to perform the above-described operation. Again (S9 to S1
1).

As described above, the number-of-people detection sensor control unit 11 performs the number-of-people detection by the number-of-people detection sensor 2 in succession a plurality of times, and the result of detection is included when the detection results become equal to each other a predetermined number of times. The detected number of people is output to the alarm activation means 12. The comparison of the above detection results may be performed only by the number of people detected,
In that case, the position information output from the people detection sensor 2 is ignored.

The number-of-persons calculation unit 121 of the alarm activation means 12 always calculates the number of pushbuttons in the ON state based on the output of the pushbutton state holding unit 17, and the number of people detection sensor control unit 11 notifies the detected number of people. As shown in FIG. 6, the number-of-persons comparison unit 122 of the activation means 12 first compares the number of pushbuttons in the ON state calculated by the number-of-people calculation unit 121 with the detected number of people notified from the number-of-people detection sensor control unit 11. Yes (S21). And if they match,
The process is terminated by determining that there is no need to issue an alarm. However, if they do not match, the display mode switching control unit 14
Outputs a pulse of logic "1" to the OR gate 142 of
After extending the M display mode period (S22), an output request for an alarm message is issued to the PM screen creation section 52 of the display control section 5d (S23). In this output request, if the number calculated by the number-of-people calculation unit 121 is larger than the detected number of people,
It requests the output of an alarm message urging to reduce the number of ON pushbuttons, and vice versa. Further, the number-of-people comparison unit 122 requests the speaker drive unit 13 to output an alarm sound (S24).

In response to this, the speaker driving unit 13 causes the speaker 8 to ring for a certain period of time, and audibly alerts the person to be surveyed to operate the push button.

Further, when the PM screen creating section 52 is requested to issue an alarm message urging to increase the number of ON push buttons, the PM screen creating section 52 updates the contents of the PM screen memory 53, and as shown in FIG. An alarm message such as "please press" is displayed in the alarm message display area M for a certain period of time. On the contrary, when it is requested to output the warning message prompting to reduce the number of push-buttons that are turned on, the contents of the PM screen message 53 are updated to display the warning message display area M.
A warning message such as "Please erase" is displayed for a certain period of time.

As described above, when the number of people detected by the number-of-people detection sensor 2 and the state of the push button are different, an alarm is issued by a sound and a message, so that the person to be surveyed can be prompted to perform a correct operation. This makes it possible to prevent unintentional input errors. When issuing an alarm, PM
The reason why the display mode period is extended is to prevent the alarm message from disappearing because the watch display mode will be restored after a certain period of time if not extended, but the above certain period is sufficiently long. In some cases no such extension is necessary.

(3) When a person's movement is detected by the pyroelectric sensor 6 If there is a person's movement in the viewing area of the television 4, the pyroelectric sensor 6 keeps the logic "1" during the duration of the movement. "Pulse is output continuously. This pulse is generated by the OR gate 112 of the person detection sensor control unit 11,
It is input to the retrigger timer 114 via 113, and the AND gate 141 via the OR gate 112 and the OR gate 142 of the display mode switching control unit 14.
Is input to the other input terminal of.

Since the AND gate 141 is opened when the television power is turned on, the pulse of logic "1" output from the OR gate 142 passes through the AND gate 141 and is input to the retrigger timer 143, and the retrigger timer 143.
Output becomes logic "1" only for a certain period of time. As a result, the selector 56 of the display control unit 5d is set to P for a certain time.
Select the M screen memory 53 side, and the display 5 with a touch sensor displays the push button image as shown in FIG.
The M display mode is set.

On the other hand, the number of people detection sensor control section 11
When the logic "1" pulse is input from the OR gate 113, the re-trigger timer 114 sets the output to the logic "1" for a predetermined time, and outputs the logic "1" again to the logic "1". When a pulse is input (that is, when it is retriggered), the output period of logic "1" is extended. As a result, the retrigger timer 114 sets its output to logical "0" after a lapse of a fixed time after the pulse continuously output from the pyroelectric sensor 6 is stopped. Since the start signal generator 115 in the latter stage outputs the number-of-people detection start signal at the timing when the output of the retrigger timer 114 falls from the logic “1” to the logic “0”, the people detection sensor 2 eventually detects the movement of the person. The number of people will be detected when the detection is stopped. The subsequent operation is the same as the operation (2) when the power of the television 4 is turned on.

(4) Pushbutton remote operation by the remote control transmitter 3 When a certain button of the remote control transmitter 3 is pressed, a personal identification code corresponding to the button is transmitted by infrared rays and the fixed unit 1 receives infrared rays. It is received by the device 7. The code discriminator 16 of FIG. 4 discriminates the received personal identification code and outputs a pulse corresponding to the discriminated personal identification code among the pulses “b1” to “b8” of logic “1”, for example, the pulse b1. The pulse b1 is input to the corresponding flip-flop F1 via the corresponding OR gate 171 of the push button state holding unit 17, and the flip-flop F1 is inverted. That is, if it is in the OFF state, it is inverted to the ON state, and if it is in the ON state, it is inverted to the OFF state.

On the other hand, the pulse is input to the re-trigger timer 114 via the OR gates 111, 112 and 113 of the human number detection sensor control unit 11, and the OR gates 111 and 112 and the display mode switching control unit 1 are also provided.
It is input to the retrigger timer 143 via the OR gate 142 and the AND gate 141 of No. 4. As a result, as in the cases of (2) and (3) above, the display 5 with a touch sensor is switched to the PM display mode for a fixed time, and
The number of people detection sensor 2 is detected, and an alarm is issued if necessary. Therefore, the remote control transmitter 3
By observing the change in the push button state of the display unit 5 with a touch sensor of the fixed unit 1, the person who has operated can know the result of the remote operation. Also, if the number of pushbuttons that is smaller than the actual number of viewers is turned on by the wrong button operation, or conversely if the number of pushbuttons that is larger than the actual number of viewers is turned on, the number of people detected by the number-of-people detection sensor 2 is different. Is detected and an alarm is issued.

The state of the push button can be changed not only by remote control by the remote control transmitter 3 but also by touching the display surface of the display 5 with a touch sensor. In this case, when the operator moves while trying to touch the display unit with a touch sensor 5, the pyroelectric sensor 6 detects the movement of the person and switches to the PM display mode for a certain period of time, so that the operator is displayed. Just touch the push button. When the push button of the display unit with a touch sensor 5 is touched, the pressed key is discriminated based on the touched portion of the key discriminator 5c of FIG. 4, and the corresponding one of the pulses a1 to a8 of logic “1” is determined. By inputting the pulse to the corresponding flip-flop via the corresponding OR gate of the push button state holding unit 17, the inversion operation is performed. In addition,
When the person's movement is detected by the pyroelectric sensor 6, the detection is performed by the person number detecting sensor 2 as described above, so that an alarm is issued in the case of an erroneous operation.

(5) Collection of viewing status by individual The viewing status data creating unit 20 includes the push button state holding unit 17
Based on the output of the clock mechanism 18 and the output of the clock mechanism 18, it monitors who in the household to be measured for viewing has started or finished watching, and based on the result of this monitoring and the channel information detected by the television sensor 19, Another viewing situation data is created and stored in the memory 21. The viewing condition data stored in the memory 21 is sent to a center (not shown) through a telephone line or the like by the terminal controller 22 as is well known.

FIG. 7 is an operation timing chart of this embodiment. As shown in the figure, the display mode of the display unit with a touch sensor 5 is the clock display mode while the power of the television 4 is off. When the power of the TV 4 is turned on, the display mode is immediately switched to the PM display mode,
In addition, the retrigger timer 114 is activated to detect the number of people. In the illustrated example, an example in which the number of people detection by the number of people detection sensor 2 is performed twice is shown. After that, the display mode becomes the clock display mode again. Next, the movement of the person is detected by the pyroelectric sensor 6
When it is detected by, it immediately switches to the PM display mode,
In addition, the retrigger timer 114 is repeatedly restarted by the output of the pyroelectric sensor 6, and after the lapse of a predetermined time from the time when the pulse is no longer output from the pyroelectric sensor 6, the detection of the number of people by the number of people detection sensor 2 is started. In the example shown in the figure, the result of the first detection of the number of people and the result of the second detection of the number of people do not match, so the third detection of the number of people is performed. Since this is the same as the second result, the detection of the number of people is terminated There is. After this, the timepiece display mode is set again. After that, when the push button is remotely operated by the remote control transmitter 3, the display mode immediately becomes the PM display mode, and the number of people is detected. Then, when the power of the television 4 is turned off again, the display mode remains the clock display mode.

In the above embodiment, the clock screen is displayed on the display 5 with the touch sensor when the power of the television 4 is turned off, but nothing may be displayed during the power off period of the television 4. In this case, the display mode switching control unit 14 of FIG. 4 outputs the output of the TV power ON detector 15 to the selector 56 as it is. Further, during the power-on period of the TV 4, a predetermined time is set from the time when the power of the TV 4 is turned on, the time when the movement of the person is detected by the pyroelectric selector 6 and the time when the push button is remotely operated by the remote control transmitter 3. Although the PM screen is displayed only for the time and the clock screen is displayed for the remaining period, the PM screen may be constantly displayed during the power-on period of the television 4. Further, instead of the display unit 5 with a touch sensor, a physical push button with illumination, which is turned on when turned on and turned off when turned off, may be provided on the front panel of the fixed unit 1.

[0054]

According to the push button PM device of the present invention described above, the following effects can be obtained.

Since the number of people detecting sensor detects a person who is almost stationary, the accuracy of detecting the number of people is improved, and the probability of false alarm is reduced.

When the person to be surveyed stops viewing and leaves the viewing area, or enters the viewing area for viewing, on the contrary, the pyroelectric sensor detects the motion of the person, and captures the still state immediately after that. Since the detection by the number of people detection sensor is performed and an alarm is issued if necessary, it is possible to issue an alarm by the number of people detection at a timing when there is a high possibility that the viewing is stopped or started.

Since the number of people detection sensor does not always detect the number of people, but the detection operation is performed only at a predetermined timing, the life of the number of people detection sensor can be extended as compared with the case of continuous operation.

When the same detection result is continuously obtained from the number-of-people detection sensor a predetermined number of times, the detection result is used, the accuracy of detection of the number of people is further improved, and as a result, the false alarm probability is generated. Can be further reduced.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a push button PM device of the present invention.

FIG. 2 is a diagram showing an example of a state of a fixed unit in a timepiece display mode.

FIG. 3 is a diagram showing an example of a state of a fixed unit in a PM display mode.

FIG. 4 is a block diagram showing an internal configuration example of a fixed unit.

FIG. 5 is a flowchart showing a processing example of a control unit of a people detection sensor control unit.

FIG. 6 is a flowchart showing a processing example of the number of people comparison unit of the alarm activation means.

FIG. 7 is an operation timing chart of the push button PM device of the present invention.

[Explanation of symbols]

 1 ... Fixed unit 2 ... Human number detection sensor 3 ... Remote control transmitter 4 ... TV 5 ... Display with touch sensor 6 ... Pyroelectric sensor 7 ... Infrared receiver 8 ... Speaker

Claims (3)

[Claims] 1. A push-button PM device that measures the viewing status of each individual television by operating a push-button assigned to each survey subject at the start and end of viewing of the television. A number-of-people detection sensor that detects the number of people who are present, a pyroelectric sensor that detects the movement of people in the television viewing area, an alarm unit that issues an alarm prompting the operation of the push button, and a movement of people by the pyroelectric sensor. The number of people detected by the number of people detection sensor is detected at the timing immediately after the detection, and the number of people detected is output from the number of people detection sensor control unit. The number of people is compared with the number of push buttons in the viewing state among the push buttons, and if they are different, the alarm means is activated. Pushbutton PM apparatus characterized by comprising a warning activation means that. 2. A push-button PM device for measuring the viewing status of each individual television by operating a push-button assigned to each survey subject at the time of starting and ending the viewing of television. A number-of-people detection sensor that detects the number of people who are present, a pyroelectric sensor that detects the movement of people in the television viewing area, an alarm unit that issues an alarm prompting the operation of the push button, and a movement of people by the pyroelectric sensor. When the number of people detected is detected immediately after that, the number of people is detected by the number of people detection sensor in succession a plurality of times, and when the number of detected people becomes equal to a predetermined number of times in succession The number of people detection sensor control unit that outputs the number of people, the number of detected people output from the number of people detection sensor control unit, and the state of watching of the push button And going on to compare the number of pushbuttons, pushbutton PM apparatus characterized by comprising a warning activation means for activating said alarm means when differences. 3. A push-button PM device that measures the viewing status of each individual television by operating the push-buttons assigned to each surveyee at the start and end of the television viewing. A number-of-people detection sensor for detecting the number of people present, a pyroelectric sensor for detecting the movement of people in the TV viewing area, an alarm unit for issuing an alarm for urging the operation of the push button, and a timing when the power of the TV is turned on. , The number of people detected by the number-of-people detection sensor a plurality of times at the timing when the push button is remotely operated by the remote control transmitter and at the timing when the movement of the person is detected by the pyroelectric sensor and immediately after that the movement of the person is no longer detected. Performs consecutively and outputs the detected number of people when the detected number of people becomes equal for a predetermined number of times in succession The sensor control unit compares the detected number of persons output from the number-of-persons detection sensor control unit with the number of push buttons in the viewing state among the push buttons, and activates the alarm unit if they differ. A push button PM device comprising an alarm activation means.