JP3162244U - Wireless counter, transmitter and receiver thereof - Google Patents

Abstract

A signal sensed by a portable sensor that can be counted without requiring manual operation is transmitted wirelessly, and the count number of the signal received by a digital counter on the receiving side is displayed. A signal detected by an optical sensor for converting an amount of change of light passing by a person into an electric signal is added wirelessly from a transmitter and transmitted wirelessly. The receiver 200 receives a signal to which an ID signal that matches a pre-registered ID signal is added, counts the received signal, and displays the number of people on the counter display unit of the counting unit. [Selection] Figure 1

Description

  The present invention relates to a wireless counter. Specifically, it automatically measures the number of people passing by, transmits the measurement signal wirelessly, receives and counts the measurement signal with a receiver at a remote location, and counts the count value. It relates to technologies that can be displayed.

  Some conventional counters automatically measure the number of people passing by, count measurement signals, and display count values (see, for example, Patent Document 1).

  In addition, there is an apparatus that automatically measures the number of passing articles and counts measurement signals (see, for example, Patent Document 2).

Japanese Patent No. 4225469 Japanese Patent Laid-Open No. 03-242783

  However, in Patent Document 1 or 2, since the measurement unit and the display unit are integrated, the count value can be confirmed only on the display unit of the counter that is measuring.

  For this reason, in order to confirm a count value, there exists a problem that it cannot confirm, unless it goes to the place with the counter which is measuring.

  The present invention has been made paying attention to such problems, and an object thereof is to provide a wireless counter capable of confirming a count value at a position away from a measurement place.

The wireless counter according to claim 1 of the present invention is
An optical sensor unit that receives light and detects a signal; a detection unit that detects passage of an object based on a signal detected by the optical sensor unit; and transmission information detected by the detection unit by radio signal A transmitter comprising:
Receiving a radio signal transmitted from the transmitter, detecting a passing information of the received radio signal, a counting unit counting based on the passing information detected by the receiving unit, and counting by the counting unit A receiver comprising an output unit for outputting the counted information,
It is characterized by having.

Moreover, the transmitter in the wireless counter according to claim 6 of the present invention is:
A transmitter that transmits a radio signal to a receiver that counts and outputs based on passage information that detects passage of an object,
A sensor input unit that receives an input from an optical sensor that receives light and detects a signal, a detection unit that detects the passage of an object based on a signal input from the sensor input unit, and a detection unit A transmission unit that transmits passage information as a radio signal;
It is characterized by providing.

Moreover, the receiver in the wireless counter according to claim 9 of the present invention is:
A receiver that receives a wireless signal from a transmitter that wirelessly transmits passage information that detects passage of an object,
The wireless signal transmitted from the transmitter is received, the reception unit that detects passage information of the received wireless signal, the counting unit that counts the passage information detected by the reception unit, and the counting unit An output unit for outputting count information;
It is characterized by providing.
According to this feature, in the transmitter, the optical sensor unit receives light and detects a signal, and the detection unit detects passage of an object based on the signal detected by the optical sensor unit. The passage information detected by the detection unit is transmitted as a radio signal. In the receiver, the receiving unit receives the radio signal transmitted from the transmitting unit, detects passage information of the received radio signal, and the counting unit counts based on the passing information detected by the receiving unit. The output unit can output the count information counted by the counting unit.

  A wireless counter that detects the passage of an object with a transmitter, transmits the detected passage information as a radio signal, counts based on the passage information of the radio signal received by a receiver, and outputs the counted count information Therefore, the count value can be confirmed at a position away from the measurement location. Since the transmitter and the receiver transmit and receive wirelessly, they can be installed at separate positions without routing cables or the like. Since the transmitter captures and detects light passing through objects such as people and objects, the wireless counter transmitter is installed at the measurement location, and the receiver is installed at a remote location, eliminating the need for manpower. Counting the number of people who pass correctly and confirming the count value can be expected to greatly reduce labor costs. As an output unit of the receiver, a display output unit or an external output unit that can be connected to a personal computer or the like can be provided. In addition, since the detected passing information is transmitted as a radio signal as it is, no extra circuit such as a counter is mounted on the transmitter side, so the circuit scale can be further reduced, and a simpler configuration can be achieved. Moreover, power consumption can be reduced. Since the power consumption is small, for example, it can be driven only by a power source such as a dry battery and does not need to be connected to an outlet such as a commercial power source. Therefore, the transmitter can be installed anywhere and can be freely carried and installed anywhere.

The wireless counter according to claim 2 of the present invention is
The transmitter transmits the wireless signal to be transmitted with identification information of the transmitter added thereto,
The reception unit receives a radio signal added with the identification information transmitted from the transmission unit, which matches the identification information registered in advance.

Moreover, the transmitter in the wireless counter according to claim 7 of the present invention is:
The transmitter is configured to transmit a radio signal to be transmitted by adding a transmitter to be received and identification information of the transmitter identified to accumulate the passage information. .

Moreover, the receiver in the wireless counter according to claim 10 of the present invention is:
The reception unit receives a radio signal added with the identification information transmitted from the transmission unit, which matches the identification information registered in advance.
According to this feature, the reception unit receives a radio signal added with the identification information transmitted from the transmission unit that matches the identification information registered in advance, and matches the identification information registered in advance. Since the wireless signal transmitted from other transmitters is not received, the transmitter that transmits the passage information to be counted is selected by the identification information even when a plurality of transmitters are mixed. be able to.

The wireless counter according to claim 3 of the present invention is
The receiving unit respectively receives wireless signals transmitted from a plurality of transmitters, detects passage information of wireless signals transmitted from the plurality of transmitters,
The counting unit accumulates all passage information detected from the plurality of transmitters detected by the receiving unit,
The output unit outputs count information accumulated by the counting unit.

A receiver in a wireless counter according to claim 11 of the present invention is:
The receiving unit respectively receives wireless signals transmitted from a plurality of transmitters, detects passage information of wireless signals transmitted from the plurality of transmitters,
The counting unit accumulates all passing information detected by the receiving unit and transmitted from each of the plurality of transmitters received by the receiving unit,
The output unit outputs count information accumulated by the counting unit.
According to this feature, in the receiver, in order to output counting information by accumulating all passing information respectively transmitted from a plurality of transmitters, a plurality of transmitters are installed in various places, The passage information detected by the transmitter can be collected and the total of these can be output as a cumulative value.

The wireless counter according to claim 4 of the present invention is
A plurality of the transmitters;
Each transmitter of the plurality of transmitters transmits the wireless signal to be transmitted with identification information of the transmitter added thereto,
The receiving unit receives registration information for registering the identification information of the transmitter, a radio signal to which the identification information transmitted from the transmission unit is added, and identification information registered in the registration unit, It is characterized by comprising discrimination means for discriminating a radio signal to which matching identification information is added, and sending means for detecting and sending out passage information of the radio signal discriminated by the discrimination means.

Moreover, the receiver in the wireless counter according to claim 12 of the present invention is:
The reception unit receives registration information for registering identification information of the transmitter, and a radio signal to which the identification information transmitted from the transmission unit is added, and matches the identification information registered in the registration unit. And a sending unit for sending the wireless signal discriminated by the discriminating unit to the output unit.
According to this feature, first, in the reception unit, the identification information of the transmitter is registered in advance by a registration unit. At the time of reception, the discrimination means receives the radio signal to which the identification information transmitted from the transmission unit is added, and discriminates the radio signal to which the identification information that matches the identification information registered in the registration means is added. Then, the transmission means detects and transmits the passage information of the radio signal determined by the determination means. As a result, since the passage information of the radio signal to which the identification information that matches the identification information registered in advance in the registration means is detected is detected, from other transmitters that do not match the identification information registered in advance. Since a wireless signal to be transmitted is not received, a transmitter that transmits passage information to be counted can be selected by identification information even when a plurality of transmitters coexist. Further, by registering transmitter identification information in advance by the registration means, a plurality of transmitters received by the receiver can be grouped. Further, the receiver can output the accumulated value of the passage information for the grouped transmitters by outputting the accumulated value of the passage information from the received transmitter.

The wireless counter according to claim 5 of the present invention is
The transmitter transmits the radio signal in a predetermined frequency channel;
The receiving unit receives the radio signal transmitted on the frequency channel and does not receive a radio signal transmitted on a frequency channel other than the predetermined frequency channel.

The transmitter in the wireless counter according to claim 8 of the present invention is:
The transmitting unit transmits the radio signal using a predetermined frequency channel that can be received by a receiver that receives the counting of the passing information.

Moreover, the receiver in the wireless counter according to claim 13 of the present invention is:
The receiving unit receives the radio signal transmitted on a predetermined frequency channel and does not receive a radio signal transmitted on a frequency channel other than the predetermined frequency channel.
According to this feature, since transmission / reception is performed on a predetermined frequency channel, for example, when a plurality of transmitters coexist, radio signals transmitted on other frequency channels other than the predetermined frequency channel are transmitted. Since it is not received, interference can be prevented. Since the frequency channel is determined in advance, a plurality of transmitters received by the receiver can be grouped. In addition, when the frequency channel and the transmitter identification information are registered in advance, the transmitter to be received can be determined by both the frequency channel and the transmitter identification information. It is possible to recognize the transmitter to be received accurately.

A receiver in a wireless counter according to claim 14 of the present invention,
An optical sensor unit that receives light and detects a signal, and an input unit that inputs a signal detected by the optical sensor unit,
The counting unit accumulates all the passing information respectively transmitted from the plurality of transmitters received by the receiving unit and the passing information based on the signal input to the input unit, and the accumulated counting information is obtained. It is characterized by outputting.
According to this feature, in the receiver, not only the passage information transmitted from the transmitter, but also the own receiver includes the optical sensor unit and the input unit, and can input the passage information. Further, the counting unit accumulates all the passing information respectively transmitted from the plurality of transmitters received by the receiving unit and the passing information based on the signal input to the input unit, and the accumulated counting information Can be output.

The receiver in the wireless counter according to claim 15 of the present invention is:
The counting unit accumulates all passing information respectively transmitted from a plurality of transmitters received by the receiving unit, received within a predetermined time, and outputs the accumulated counting information. And Thereby, the count information which is the cumulative value of the passage information can be output at every predetermined time.

It is explanatory drawing which shows the transmitter and receiver of the wireless counter in Example 1. FIG. It is a figure which shows the transmitter of the wireless counter in Example 1. FIG. 1 is a diagram illustrating a wireless counter receiver in Embodiment 1. FIG. FIG. 3 is a diagram illustrating a sensor unit of a wireless counter according to the first embodiment. 3 is a block diagram of a transmitter of a wireless counter in the first embodiment. FIG. 3 is a block diagram of a receiver of a wireless counter in Embodiment 1. FIG. 3 is an explanatory diagram of a registration unit of a receiver of a wireless counter in Embodiment 1. FIG. It is explanatory drawing which shows the connection relation of the transmitter and receiver of a wireless counter in Example 1. FIG. 6 is an explanatory diagram on a PC screen in Embodiment 1. FIG.

  The form for implementing the wireless counter which concerns on this invention is demonstrated below based on an Example.

  A wireless counter according to the first embodiment will be described with reference to FIGS. FIG. 1 shows a transmitter and receiver of a wireless counter in the first embodiment.

  1, reference numeral 100 denotes a wireless counter transmitter according to the present invention, reference numeral 200 denotes a wireless counter receiver according to the present invention, and reference numeral 300 denotes data transmitted from the receiver 200 to a personal computer ( A data logger for outputting to 400) is shown below.

  In the first embodiment, the passing information of the object detected by the transmitter 100 is transmitted to the receiver 200 as a radio signal, the passing information received by the receiver 200 is counted, and the counted information is displayed or output. A wireless counter that can output to is configured.

  As will be described later, the transmitter 100 detects the passage of the object based on the signal detected by the optical sensor unit that receives the light emitted from the object and detects the signal, and transmits the detected passage information as a radio signal. Send with. One or a plurality of transmitters 100 can be provided. In FIG. 1, the transmitters 100a, 100b, 100c,. As will be described later, the receiver 200 wirelessly receives a wireless signal from the transmitter, counts based on the passage information of the wireless signal received wirelessly, and outputs the counted information. For example, up to 20 transmitters 100 can be provided for one receiver 200. In addition, identification information (transmitter ID) for identifying each transmitter is added in advance, and the transmitter adds a transmitter ID at the time of registration and transmission to the receiver, as will be described later. Then, it may be transmitted. Further, in order to transmit and receive wirelessly between the transmitter 100 and the receiver 200, a transmission frequency and a reception frequency are determined in advance, and transmission and reception are performed at a predetermined frequency.

  The receiver 200 can be set to receive only the radio signal to which the registered transmitter ID is added by registering the transmitter ID in advance. As a result, the transmitter ID can be identified and received. The receiver 200 receives the registered frequency channel and receives only the wireless signal to which the registered transmitter ID is added, so that the wireless signal passing information from the transmitter 100 is received. It counts based on it and outputs the counted count information. In this case, when a plurality of transmitter IDs are registered, all passing information transmitted from all registered transmitters 100 is accumulated, and the accumulated count information is displayed and output on the display unit. In addition, serial data including passage information can be output to the outside. Thereby, the cumulative value of the passage information detected by all the transmitters 100 registered in the receiver 200 can be displayed and output.

  Furthermore, a plurality of receivers 200 may be provided. In this case, the transmitter 100 to be received can be made different by changing the frequency channel for each receiver 200. In addition, when a plurality of receivers 200 are used on the same frequency channel, by registering the transmitter ID of the transmitter 100 to be received, wireless transmission from the transmitter 100 of the registered transmitter ID is performed. A signal can be received.

  As will be described later, the data logger 300 has a function of continuously storing and counting the passing information pulses output from the receiver 200, and when the PC 400 is instructed, the count value is converted into serial data and output. can do.

  In the PC 400, a predetermined count display application program is stored in the storage means. By executing the count display application program, the passage information output from the wireless counter is transmitted via the data logger 300. It can be counted and displayed. When the count display application program receives an instruction to start recording, the data logger 300 instructs the data logger 300 to start transfer output of serial data, and receives serial data at a predetermined recording time. Based on the serial data, a process of displaying and outputting the count value is performed. For example, the cumulative total of the count values can be displayed for each registered receiver 200.

  Next, the configuration of the transmitter 100 will be described with reference to FIGS. FIG. 2 shows an external view of the transmitter of the wireless counter in the first embodiment. 2 (a) is a front view of a transmitter according to the present invention, FIG. 2 (b) is a plan view, FIG. 2 (c) is a side view, FIG. 2 (d) is a bottom view, and FIG. The block diagram inside the transmitter 100 concerning is shown.

  2A to 2D, the transmitter 100 has an appearance of a sensor input unit 101 that receives an input from an optical sensor, a sensitivity adjustment unit 102 that adjusts the sensitivity of the optical sensor, and a DC power supply. External power input unit 103, power switch 104 for turning on / off the power, antenna 105 for transmitting and receiving radio signals, green LED 106 that lights when the power switch is on, and blinks when transmitting A red LED 107 and a bottom portion 109 that is a bottom portion of the main body of the transmitter 100 and includes a mounting portion 108 to which a dry battery 111 can be mounted.

  As shown in FIG. 5, the internal configuration of the transmitter 100 main body includes a sensor input unit 101 that receives input of a signal from an optical sensor that receives light and detects a signal, and a signal input by the sensor input unit 101. And at least a transmission unit 119 that transmits the passage information detected by the detection unit 120 as a wireless signal. These components are connected to the stabilized power supply 110 via the power switch 104. Alternatively, it is connected to the external power input unit 103 and supplied with power. Connected to the sensor input unit 101 is an optical sensor unit 124 including an optical sensor 123 for receiving light and detecting a signal. The transmitter 100 can further include a red LED 107 that is a display means that blinks when transmitting, and a green LED 106 that is a display means for indicating that the power switch is turned on.

  Further, in the transmitter 100, the counter 141 that counts the passing information detected by the detector 120, the counter display 142 that displays and outputs the count value counted by the counter 141, and the detector 120 are detected. Further, an external output unit 145 that outputs the passage information to the outside may be further provided. In this embodiment, the counter display unit 142 that outputs the count information functions as the output unit in the claims, but the external output unit 145 outputs the count information to the outside instead of outputting the passage information to the outside. It is good also as an output part which outputs. Further, as the output unit, in addition to the display output unit and the external output unit, an audio output unit that outputs the count information as audio can be provided.

  Next, the function of each block of the transmitter 100 will be described in detail.

  The optical sensor unit 124 illustrated in FIG. 5 includes an optical sensor for receiving light and detecting a signal. As shown in an external view of the optical sensor unit 124 in FIG. 4, the optical sensor unit 124 inputs an optical sensor case 130 having an optical sensor 123 therein and a signal detected by the optical sensor 123 to a transmitter. And a connection cable 135 which is a connection line.

  The optical sensor case 130 is provided with a light receiving window 140 for receiving light at a predetermined location. The light sensor case 130 is in the vicinity of the inside of the light receiving window 140 and is used for converting received light into an electrical signal. An optical sensor 123 is provided. As the optical sensor 123, for example, an infrared sensor such as Cds (cadmium sulfide cell) can be used. Since this infrared ray is naturally emitted from all objects having temperature with a wavelength distribution corresponding to the temperature, the infrared ray emitted from the passing object is detected by the optical sensor 123 and transmitted. The passage of the object can be detected by the detection unit 120 inside the machine 100. Further, the sensitivity adjustment of the optical sensor 123 can be performed by adjusting the sensitivity adjustment unit 102. Sensitivity can be freely adjusted by turning the dial of the sensitivity adjusting unit 102. The light receiving window 140 is provided in the light sensor case 130 where light is easily received. By incorporating the optical sensor 123 in the optical sensor case 130, an optical sensor unit having excellent dust resistance and waterproofness can be configured. Furthermore, a paper filter made of synthetic resin or cellophane for adjusting the amount of light received by the optical sensor 123 may be attached in the vicinity of the light receiving window 140 and the optical sensor 123 so as to be removable or fixed with an adhesive or the like. Is possible.

  The connection cable 135 includes an optical sensor side jack 131 as a connection terminal connected to the optical sensor case 130 side, a transmitter side jack 132 as a connection terminal connected to the transmitter 100 side, and a connection line connecting these jacks. 133. By configuring the optical sensor unit 124 with the optical sensor case 130 and the connection cable 135, the transmitter 100 and the position detected by the optical sensor 123 can be separated from each other, and the length of the connection cable 135 can be reduced. By making it longer, the distance between the transmitter 100 and the optical sensor 123 can be increased.

  Infrared light is detected by the optical sensor 123 via the light receiving window 140, and the signal detected by the optical sensor 123 is input to the sensor input unit 101 of the transmitter 100 via the connection cable 135.

  In FIG. 5, the signal input to the sensor input unit 101 is input to the detection unit 120, and the detection unit 120 detects the passage of an object based on the signal detected by the optical sensor 123.

  The detection unit 120 includes an amplification unit 118 that amplifies the signal detected by the optical sensor 123, a detection unit 113 that detects a change in the amplitude of the signal based on the signal amplified by the amplification unit 118, and a detection unit 113. With regard to the detected amplitude change, a one-shot timer unit 114 that outputs a pulse once when the amplitude changes during a predetermined detection time, and a subsequent transmission unit based on the signal output from the one-shot timer unit 114 And a driver circuit 117 for turning on the LED 119, the red LED 107, and the like.

  When an object passes, the optical sensor 123 detects light in the infrared region with Cds and outputs a signal, and the detected signal is amplified by the amplification unit 118. The amplified signal outputs a pulse when the detecting unit 113 detects a change in amplitude of + change (dark → light change) and −change (light → dark change). For example, the detection unit 113 can detect a change in amplitude by comparing a voltage of the amplified signal with a reference voltage using a predetermined voltage as a reference voltage.

  If the one-shot timer unit 114 sets the detection time of one time, for example, to one second, if there is at least one pulse detected due to the change in amplitude during one second, the pulse is sent to the driver circuit 117 only once. By transmitting, it is possible to output a pulse as the passing information in which the passage of the object is detected. Alternatively, the one-shot timer unit 114 sets the detection time to 200 ms, for example, and outputs a single pulse that is turned on for 200 ms of the detection time when there is one detected pulse due to a change in amplitude, Thereafter, the next pulse may be detected and output by a change in amplitude. The one-shot timer unit 114 may be configured to set the detection time. The detection accuracy can be changed by changing the detection time.

  The driver circuit 117 drives the subsequent circuit according to the signal output from the one-shot timer unit 114. In accordance with the signal output from the one-shot timer unit 114, for example, the red LED 107 is turned on / flashes, and the signal output from the one-shot timer unit 114 is output to the transmission unit 119.

  The transmission unit 119 receives the pulse signal of the passing information output from the one-shot timer unit 114 via the driver circuit 117, modulates it with a predetermined frequency according to a predetermined modulation method, and transmits the output from the antenna 105 wirelessly. To do. By using a pulse signal of passage information as a signal to be transmitted in the transmission unit, there is no need to provide a counting means or the like, so that the configuration in the transmission unit can be further simplified and reduced in weight. Further, since power consumption can be reduced, driving by a battery becomes possible.

  The operation of the transmission unit 119 will be described later together with the operation of the reception unit 219 of the receiver 200.

  Since the stabilized power supply 110 including the dry battery 111 is connected to each block via the power switch 104, the circuit of each block is activated by turning on the power switch 104, and the optical sensor 123 moves the person or the like. The operating state is captured as a change in the amount of light. By driving with a dry battery, an external power source is not required, so that the installation location can be outdoors, and it is easy to carry. Further, instead of the stabilized power supply 110, an external power supply is connected to the external power supply input unit 103, and power is supplied from the outside, so that it is possible to cope with a long usage time, and it is necessary to worry about running out of the battery. There is no.

  Further, the transmitter 100 may include a counting unit 141 and a counter display unit 142 in the subsequent stage of the driver circuit 117. In this case, the counting unit 141 counts the passing information pulse signal output from the one-shot timer unit 114 via the driver circuit 117, and the count value is displayed on the counter display unit 142. In this case, a reset button for instructing resetting of the counting unit 141 and the counter display unit 142 can be further provided. As a result, the count value can be confirmed not only at the receiver side but also at the transmitter. Further, when the cumulative value is displayed and output on the receiver side, the count value in each transmitter can be confirmed.

  Moreover, you may make it further provide the external output part 145 which outputs the pulse signal or count information of the passage information detected by the detection part 120 outside. In this case, simultaneously with the transmission from the transmission unit 119, the pulse signal or the count information of the passage information detected by the detection unit 120 can be directly output to the outside by wire.

  The configuration of the counting unit 141, the counter display unit 142, the reset button, and the external output unit 145 in the transmitter 100 includes a counting unit 218, a counter display unit 208, a reset button 209, and an external output unit in the receiver 200 shown in FIG. The configuration can be the same as 202.

  Next, the configuration of the receiver 200 will be described with reference to FIG. 3 and FIG. FIG. 3 shows an external view of a wireless counter receiver according to the first embodiment. 3 (a) is a front view of a receiver according to the present invention, FIG. 3 (b) is a plan view, FIG. 3 (c) is a side view, and FIG. 3 (d) is a case where the angle of the counter display unit is changed. FIG. 6 is a side view, and FIG. 6 shows a block diagram of the interior of the receiver 200 according to the present invention.

  3 (a) to 3 (d), the external appearance of the receiver 200 includes an external power input unit 203 for inputting DC power, a power switch 204 for turning on / off the power, and an antenna for transmitting and receiving radio signals. 205, a green LED 206 which is a display means which is turned on when the power switch is ON, a red LED 207 which is a display means which is blinked when transmitting, and a counter display unit 208 which displays a count value obtained by counting passage information. A reset button 209 for instructing the counter display unit 208 and the counting unit to reset, and an external output unit 202 that outputs passage information or counting information to the outside. Further, the counter display unit 208 can rotate the counter display unit 208 with the rotation axis 210 as a central axis, and the display unit 208 is positioned so that the display unit is directed forward and upward so that the display unit 208 can be easily seen. Can tilt to.

  As shown in FIG. 6, the internal configuration of the receiver 200 main body includes a reception unit 219 that receives a radio signal of passage information transmitted from the transmission unit 119 of the transmitter 100 via an antenna 205, and a reception unit 219. Driver circuit 220 for driving the counter 218 and the like in the subsequent stage based on the pulse of the radio signal of the passage information received in the above, the counter 218 driven by the driver circuit 220 and counting the pulse of the passage information, the counter And a counter display unit 208 for displaying the count value counted at 218, which are connected to the stabilized power source 210 or the external power source input unit 225 supplied with power from the outside via the power switch 204, Supplied. In addition, an external output unit 202 that outputs a pulse of passage information to the outside can be further provided. The receiver 200 can further include a red LED 207 that is a display means that blinks when receiving, and a green LED 206 that is a display means for indicating that the power switch 204 is turned on.

  In addition, a registration unit 230 may be provided to register the frequency of the radio signal to be received in advance so that transmission / reception is performed at the registered frequency. The registration unit 230 may register a transmitter ID of a transmitter to be received. Thereby, in the receiver, the radio signal to be received can be selected by the frequency of the radio signal and / or the transmitter ID.

  Furthermore, the receiver 200 is based on a signal input from the sensor input unit and a sensor input unit that receives an input from the optical sensor so that not only reception but also passage information can be detected in the receiver. In addition, a detection unit that detects the passage of an object and a sensitivity adjustment unit that adjusts the sensitivity of the optical sensor may be provided. In this case, the sensor input unit, the detection unit, and the sensitivity adjustment unit can have the same configuration as the sensor input unit 101, the detection unit 120, and the sensitivity adjustment unit 102 on the transmitter side, and the passage information detected by the optical sensor. And the passage information received by the receiving unit may be accumulated, and the total may be counted by the counting unit 218.

  Next, the function of each block of the receiver 200 will be described in detail.

  The receiving unit 219 shown in FIG. 6 receives a radio signal via the antenna 205, demodulates it at a predetermined frequency in accordance with a predetermined modulation method, and detects a pulse signal. The detected pulse signal is input to the driver circuit 220. The signal to be received by the reception unit is registered in advance by the registration unit 230, and the radio signal to be received is selected and received by the frequency of the radio signal and the transmitter ID. The registration unit 230 may be provided in the reception unit 219. In this case, the reception unit receives the registration unit 230 for registering the transmitter transmitter ID and the radio signal added with the transmitter ID transmitted from the transmission unit 119 of the transmitter 100 and is registered in the registration unit 230. Discriminating means for discriminating a wireless signal to which identification information that matches the identification information is added, and sending means for detecting and transmitting passage information of the radio signal discriminated by the discriminating means.

  The discriminating means receives the radio signal with the transmitter ID added from the transmitter 119 of the transmitter 100 and receives the radio signal with the identification information that matches the identification information registered in the registration unit 230. Determine. The sending means detects the passage information of the radio signal determined by the determining means and sends it to the counter 218.

  Further, if necessary at a later stage, the receiving unit 219 may be provided with an amplifier circuit that amplifies the received signal. Further, the reception unit 219 has a function like the one-shot timer unit 114 in the transmission unit, and if there is at least one pulse within the detection time with respect to the reception signal, the driver circuit 220 outputs the pulse only once. You may make it transmit to.

  The counting unit 218 counts based on the pulse of the passing information of the received signal received by the receiving unit 219 via the driver circuit 220, and the count value is displayed on the counter display unit 208. When a plurality of transmitters are provided, passage information transmitted from all transmitters may be counted by the counting unit 218 and the accumulated value may be displayed on the counter display unit 208. In this case, when signals are transmitted from a plurality of transmitters at the same time, a holding / storing circuit that holds or stores the transmission signal may be further provided so that passage information can be detected from each signal. In addition, a holding / storing circuit that holds or stores the passage information transmitted and detected from each transmitter may be provided. By providing this holding / storing circuit, processing can be performed so that counting can be performed reliably when signals are simultaneously transmitted from a plurality of transmitters or when signals are transmitted continuously.

  In addition, a reset button 209 for instructing resetting of the counting unit 218 and the counter display unit 208 is provided, and the count value can be reset.

  Moreover, you may make it further provide the external output part 202 which outputs the pulse signal of all the passage information output from the driver circuit 220 outside. In this case, the pulse signal output from the external output unit 202 can be held by the data logger 300, and the count value can be totaled by the PC 400 at the subsequent stage.

  The red LED 207 is lit / flashed according to the radio signal received by the receiving unit 219. When the red LED 207 is directly driven by the receiving unit 219, the red LED 207 may be connected to the receiving unit 219 without passing through the driver circuit 220.

  Since the stabilized power supply 210 is connected to each block via the power switch 204, the circuit of each block is activated by turning on the power switch 204, and the count value is displayed according to the passing information of the received radio signal. can do. Instead of being driven by the stabilized power source 210 such as a dry battery, an external power source may be connected to the external power source input unit 225 to supply power from the outside.

  In this manner, the receiver 200 can count and display the pulses of the passage information of the radio signal transmitted from the transmitter 100.

  Next, a radio signal transmission / reception method between the transmission unit 119 in the transmitter 100 and the reception unit 219 in the receiver 200 will be described.

  The communication method between the transmission unit 119 and the reception unit 219 may be either a unidirectional communication method or a bidirectional communication method, and any modulation method can be used as long as the modulation method is defined in advance. The transmission frequency and the reception frequency can be determined in advance, but transmission / reception may be performed using a plurality of predetermined frequency channels. For example, when four usable frequency channels are provided, any one of the channels may be registered in advance in the transmitter 100 and the receiver 100 so that transmission / reception is performed at the registered frequency. . One transmission time is set to a predetermined transmission time such as 100 msec, for example. In one transmission, pulse signals of all passing information detected from the previous transmission to the current transmission are modulated by a predetermined modulation method and transmitted by a predetermined frequency. Also in the transmission unit 119 of the transmitter 100, a registration unit may be provided, and a transmission frequency, a transmitter ID, and the like may be registered in advance.

  Further, in the receiver 200, the reception frequency and the transmitter ID to be received are registered in the registration unit 230 in advance, so that the registered reception frequency and the wireless with the registered transmitter ID added thereto are added. It can be determined that only the signal is received by the receiver 200.

  In addition, when transmitting and receiving wirelessly, the transmitting unit and the receiving unit obtain a technical standard conformity certificate with a specific low-power wireless device that conforms to “ARIB STD-T93” which is a standard defined by the Radio Law. It is desirable.

  Next, the registration contents set by the registration unit 230 and the connection relationship between the transmitter 100 and the receiver 200 will be described with reference to FIGS. 7 and 8.

  FIGS. 7A and 7B are explanatory diagrams of the registration unit of the receiver of the wireless counter in the first embodiment, and FIGS. 8A and 8B show the transmitter of the wireless counter in the first embodiment. The connection relationship with the receiver is shown. The connection relationship in the case of the registered content shown in FIG. 7A is shown in FIG. 8A, and the connection relationship in the case of the registered content shown in FIG. 7B is shown in FIG.

  FIG. 7A and FIG. 8A show a case where there are a receiver 200a and a receiver 200b, and transmitters 100a to 100e. In this case, all transmitters and receivers are registered to perform transmission / reception on the same frequency channel CH1. For example, if four frequency channels can be used, two dip switches are provided to select the frequency channel for transmission / reception, and a predetermined dip switch is selected. By selecting an on / off combination, any one of the four frequency channels can be selected and registered.

  Moreover, as shown to Fig.7 (a), transmitter ID of transmitter 100a-100c is registered into the registration part 230 of the receiver 200a. In addition, the transmitter IDs of the transmitters 100c, 100d, and 100e are registered in the registration unit 230 of the receiver 200b. As a registration method, for example, the receiver is set in the registration mode, and in the registration mode, a registration signal to which the transmitter ID is assigned is transmitted from the transmitter 100, whereby the transmitter is transmitted to the registration unit 230 of the receiver. An ID can be registered. Alternatively, the receiver may be set to a registration mode, and transmitter IDs to be received may be sequentially input and registered by selecting a predetermined dip switch ON / OFF combination.

  In the case shown in FIG. 7A and FIG. 8A, all transmitters and receivers perform transmission / reception on the same frequency channel CH1, so the receiving unit 219 of the receiver 200 At the time of reception, the wireless signal to which the transmitter ID registered in the registration unit 230 is added is determined, and passage information of the determined wireless signal is detected and transmitted to the driver circuit 220. As a result, the receiver can determine the transmitter to be received based on the transmitter ID, group the registered transmitters, and accumulate the passing information for all the received transmitters. be able to. In addition, by registering the transmitter ID to be received in the registration unit, even when multiple transmitters and multiple receivers are mixed, transmitters and receivers that accumulate passing information are grouped together. I can keep it. In this case, since the transmitter 100c is registered in the receiver 200a and the receiver 200b, the passage information is received by both receivers, and the accumulated value can be obtained respectively.

  FIGS. 7B and 8B show a case where there are a receiver 200a, a receiver 200b, and transmitters 100a to 100f. In this case, the receiver 200a and the transmitters 100a to 100c are registered to perform transmission / reception on the frequency channel CH1, and the receiver 200b and the transmitters 100d to 100f perform transmission / reception on the frequency channel CH2. So that it is registered. In this case, it is possible to select the transmitter to be received without changing the transmitter ID only by changing the frequency channel. By registering the frequency channels to be transmitted and received, even when a plurality of transmitters and a plurality of receivers coexist, it is possible to group transmitters and receivers that accumulate passing information.

  Even in this case, the transmitter ID to be received may be further registered in the registration unit. As a result, since the frequency channel to be received and the transmitter ID to be received are registered in the registration units of the plurality of receivers, the transmitter to be received by both the frequency channel and the transmitter ID. Therefore, the transmitter to be received can be recognized more accurately. For example, when a third party transmits and receives using the same frequency channel, the transmitter ID is determined and received, so that a radio signal transmitted from the third party by mistake is received. There is no.

  Next, functions in the data logger 300 and the PC 400 will be described with reference to FIG. FIG. 9 is an explanatory diagram on the PC screen in the first embodiment.

  In this embodiment, the data logger 300 is a universal counter having a function of continuously storing and counting the pulses of passing information output from the receiver 200. For example, by providing a software gate counter function, the counter gate is opened and closed by software from the PC 400, and when the gate is opened, passing information is pulse counted, and the count value is transferred as serial data and output. can do. The data logger 300 and the receiver 200 can be connected using, for example, a coaxial cable such as a BNC connector, a pulse signal of passage information is transmitted, and a pulse signal of passage information is input from the input portion of the data logger 300. The As an interface between the PC 400 and the data logger 300, data can be transmitted and received between the PC 400 and the data logger 300 using an existing interface such as USB.

  Further, the data logger 300 can include a plurality of input units that respectively input the passage information pulses from the plurality of receivers 200, and count the passage information pulses input from the respective input units for each receiver. You may do it. In this case, the count value to which the input unit ID for identifying each input unit is added may be transmitted to the PC 400 as serial data. The correspondence relationship between the input unit ID and the receiver ID for identifying the receiver may be set by the PC 400.

  Alternatively, the passing information may be counted by opening and closing the gates at regular intervals using a precision clock provided in the data logger 300. For example, when the period is set to 1 second, the count value of the passage information pulses per second can be output. Furthermore, by providing a FIFO (First In First Out) system memory capable of storing a plurality of count values, it is possible to store the count values counted at a fixed period, and further, the count values stored in the FIFO system memory can be stored in the PC 400. It can be measured while taking in.

  As shown in FIG. 9, in the PC 400, when the recording start button 900 is clicked and instructed, the data logger 300 is instructed to start transfer output of serial data, and the serial data count value from the data logger 300 is displayed. When the recording end button 901 is clicked and instructed, the data logger 300 is instructed to end the transfer output of the serial data. The recording time can be preset in the recording time setting unit 904, and the count value is displayed and output for each preset recording time based on the received serial data. For example, for each registered receiver 200, a count value or a cumulative value for each count value recording time can be displayed. In FIG. 9, when the output button 902 in the middle of recording is clicked, the count value display unit 903 for each recording time corresponds to the elapsed time from the start of recording, and the count value of each receiver is displayed every minute. Display output. In addition, a cumulative value from the start of recording to the end of recording is shown in a count value cumulative display portion 905. In FIG. 9, the count value display unit 903 for each recording time has a count value from 1 minute to 2 minutes in the column corresponding to 20 and 2 minutes from the start of recording for the receiver 200a. The column corresponding to 11 and 3 minutes indicates that the count value from 2 minutes to 3 minutes is 18, and the column corresponding to 4 and 4 minutes indicates that the count value from 3 minutes to 4 minutes is 21. ing. Further, the count value cumulative display section 905 indicates that the cumulative value from the start of recording of the receiver 200a to the present is 70. As described above, the cumulative value from each receiver is a cumulative value of passage information detected by one or a plurality of transmitters grouped and registered in advance. When the reset buttons 908 to 910 are clicked and instructed, the data logger 300 is instructed to reset the count value for the corresponding receiver.

  A predetermined counting display application program for displaying the count value as described above is installed in the PC 400 and stored in the storage means. By executing the application program for counting display, the passing information output from the receiver 200 of the wireless counter can be counted and displayed via the data logger 300. In addition, since the count value and the total value for each recording time can be stored in the storage means in the PC 400, the count value and the like are edited at a later date, and the number of passing people for each receiver is graphed for each receiver. Various data processing such as display and statistical processing can be executed.

  As described above, by passing the passage information or the count information to the PC 400, various data processing can be executed based on the information.

  According to the present embodiment, the transmitter 100 detects the passage of an object, transmits the detected passage information as a radio signal, counts based on the passage information of the radio signal received by the receiver 200, and counts the counted number. Since the wireless counter that displays and outputs information is configured, the place where the passage of the object is desired to be detected and the place where the count value is confirmed can be separated from each other without drawing a cable or the like. For example, a transmitter 100 is installed at or outside a store, and a person passing through the entrance, a person passing through the outside, a passing vehicle, or the like is detected by the transmitter 100. By placing inside the station, it is not necessary to go to the transmitter 100 at the detection place, and the count value can be confirmed on the display unit of the receiver 200.

  In addition, the transmitter 100 includes an optical sensor unit, a detection unit, and a transmission unit, so that it can easily detect the passage of an object and transmit passage information, and is equipped with an extra circuit such as a counter. Therefore, the circuit scale can be further reduced, the configuration can be simplified, and the power consumption can be reduced.

  When a plurality of transmitters are provided, measurement can be performed at different places where the transmitters are installed. For example, the transmitter 100 is installed at the entrance of the first floor of the store, the entrance of the second floor, the person passing through each entrance is detected by the transmitter 100, and the receiver 200 is connected to the entrance of the first floor of the store. It is possible to receive both passage information transmitted from the respective transmitters 100 installed at the entrance of the second floor and display the count information as a total value of both passage information on the display unit. Therefore, the receiver 200 can confirm the cumulative value of the passing information detected by the transmitter 100 installed at the entrance on the first floor and the entrance on the second floor of the store.

  In this case, by providing more transmitters and grouping the transmitters in advance, transmitters that accumulate passage information for each receiver can be grouped together. As described above, the transmitter IDs of the transmitters to be received may be registered in the registration unit of each receiver to be grouped, or the frequency may be different for each group according to a predetermined frequency. May be. You may use them together. Thereby, the cumulative value of the passage information can be obtained for each group.

  Further, the receiver accumulates all passing information respectively transmitted from the plurality of transmitters received by the receiving unit and received within a predetermined time, and outputs the accumulated count information. Also good. In this case, the passage information may be accumulated and output at a predetermined time interval (predetermined period), or the passage information received from a predetermined start time to an end time may be accumulated and output. . Thereby, the accumulated value of the passage information received within a predetermined time can be displayed and output.

100 transmitter 200 receiver 300 data logger 400 PC (personal computer)
101 Sensor input unit 102 Sensitivity adjustment unit 103 External power input unit 104 Power switch 105 Antenna 106 Green LED
107 Red LED
108 mounting unit 109 bottom 120 detecting unit 123 optical sensor 202 external output unit 210 stabilized power source 218 counting unit 219 receiving unit 220 driver circuit 225 external power source input unit 230 registration unit

Claims (15)

An optical sensor unit that receives light and detects a signal; a detection unit that detects passage of an object based on a signal detected by the optical sensor unit; and transmission information detected by the detection unit by radio signal A transmitter comprising:
Receiving a radio signal transmitted from the transmitter, detecting a passing information of the received radio signal, a counting unit counting based on the passing information detected by the receiving unit, and counting by the counting unit A receiver comprising an output unit for outputting the counted information,
A wireless counter characterized by comprising: The transmitter transmits the wireless signal to be transmitted with identification information of the transmitter added thereto,
The wireless counter according to claim 1, wherein the reception unit receives a radio signal added with the identification information transmitted from the transmission unit that matches the identification information registered in advance. The receiving unit respectively receives wireless signals transmitted from a plurality of transmitters, detects passage information of wireless signals transmitted from the plurality of transmitters,
The counting unit accumulates all passage information detected from the plurality of transmitters detected by the receiving unit,
The wireless counter according to claim 1, wherein the output unit outputs counting information accumulated by the counting unit. A plurality of the transmitters;
Each transmitter of the plurality of transmitters transmits the wireless signal to be transmitted with identification information of the transmitter added thereto,
The receiving unit receives registration information for registering the identification information of the transmitter, a radio signal to which the identification information transmitted from the transmission unit is added, and identification information registered in the registration unit, 4. A discriminating unit that discriminates a radio signal to which matching identification information is added, and a sending unit that detects and transmits passage information of the radio signal discriminated by the discriminating unit. Wireless counter according to one of the following. The transmitter transmits the radio signal in a predetermined frequency channel;
The said receiving part receives the said radio signal transmitted with the said frequency channel, and does not receive the radio signal transmitted with other frequency channels other than the said predetermined frequency channel. 4. The wireless counter according to any one of 4. A transmitter that transmits a radio signal to a receiver that counts and outputs based on passage information that detects passage of an object,
A sensor input unit that receives an input from an optical sensor that receives light and detects a signal, a detection unit that detects the passage of an object based on a signal input from the sensor input unit, and a detection unit A transmitter in a wireless counter, comprising: a transmission unit that transmits passage information as a radio signal.   The transmitter is configured to transmit a radio signal to be transmitted by adding a transmitter to be received and identification information of the transmitter identified to accumulate the passage information. The transmitter in the wireless counter according to claim 6.   The transmitter in the wireless counter according to claim 6 or 7, wherein the transmitter transmits the radio signal through a predetermined frequency channel that can be received by a receiver to be received that counts the passing information. . A receiver that receives a wireless signal from a transmitter that wirelessly transmits passage information that detects passage of an object,
The wireless signal transmitted from the transmitter is received, the reception unit that detects passage information of the received wireless signal, the counting unit that counts the passage information detected by the reception unit, and the counting unit An output unit for outputting count information;
A receiver in a wireless counter, comprising:   The reception in the wireless counter according to claim 9, wherein the reception unit receives a radio signal added with the identification information transmitted from the transmission unit, which matches the identification information registered in advance. Machine. The receiving unit respectively receives wireless signals transmitted from a plurality of transmitters, detects passage information of wireless signals transmitted from the plurality of transmitters,
The counting unit accumulates all passing information detected by the receiving unit and transmitted from each of the plurality of transmitters received by the receiving unit,
The receiver in the wireless counter according to claim 9 or 10, wherein the output unit outputs the count information accumulated by the counting unit.   The reception unit receives registration information for registering identification information of the transmitter, and a radio signal to which the identification information transmitted from the transmission unit is added, and matches the identification information registered in the registration unit. 12. The method according to claim 9, further comprising: discrimination means for discriminating a radio signal to which identification information to be added is added; and sending means for sending the radio signal discriminated by the discrimination means to the output unit. A receiver in a wireless counter according to claim 1.   The receiving unit receives the radio signal transmitted on a predetermined frequency channel and does not receive a radio signal transmitted on a frequency channel other than the predetermined frequency channel. Item 13. A receiver in a wireless counter according to any one of Items 9 to 12. An optical sensor unit that receives light and detects a signal, and an input unit that inputs a signal detected by the optical sensor unit,
The counting unit accumulates all the passing information respectively transmitted from the plurality of transmitters received by the receiving unit and the passing information based on the signal input to the input unit, and the accumulated counting information is obtained. The receiver in the wireless counter according to claim 9, wherein the receiver outputs the receiver.   The counting unit accumulates all passing information respectively transmitted from a plurality of transmitters received by the receiving unit, received within a predetermined time, and outputs the accumulated counting information. A receiver in a wireless counter according to claim 9.

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