JP2006184255A - Pressure distribution measurement system between long distance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure distribution measurement system between a long distance that will not cause enlargement of apparatus nor increase in cost. <P>SOLUTION: The terminal groups of an analytical processor PC, comprising X impress terminals 10 (X: a natural number ≥2) and Y pieces of receive terminals 50 (Y: a natural number ≥2), are divided into X×Y=V pairs of impressing/receiving terminals 50, 80 by wiring divider D, the divided V pairs of impress/receive terminals 50, 80 are connected with the pressure sensors S via the cables. The pressure sensor S is provided to each seat Z for sensing the weight acting on the V number of seats. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a system capable of measuring pressure distributions at multipoint positions far away from each other (in this case, a long-distance pressure distribution measurement system).

  In general, a sheet-shaped pressure sensor is formed by forming a row electrode on one planar base film and applying pressure-sensitive ink to the upper surface of the row electrode, and on the other planar base film. A column electrode is formed and pressure sensitive ink is applied to the upper surface of the column electrode so that the row and column electrodes cross each other (for example, Patent Document 1). .). Therefore, this pressure sensor has an advantage that pressure can be detected at multiple points since all of the intersections of the row and column electrodes serve as pressure-sensitive portions.

  However, in the pressure sensor of the said form, there exists a restriction | limiting in the magnitude | size of a base film or a screen printing machine, and it is difficult to manufacture a large sized sensor.

  By the way, in recent years, large-sized pressure-sensitive distribution sensors have been installed on the floor to monitor walking movement of people and animals, etc. It is expected to be used as a pressure distribution measurement system between distances. Up to now, as a method for realizing the above contents, a general technique is to install a plurality of pressure-sensitive sensors, perform signal processing separately, and perform display analysis on a personal computer as if it were simultaneously measured. Met.

However, when the above method is adopted, a signal processing system is required for each sensor, and as a result, there is a problem that the apparatus is increased in size and cost.
Japanese Patent No. 3338983

  Therefore, an object of the present invention is to provide a long-distance pressure distribution measurement system that does not increase the size and cost of the apparatus.

(Invention of Claim 1)
According to the present invention, a terminal group of an analysis processing apparatus having X application terminals (X is a natural number of 2 or more) and Y receive terminals (Y is a natural number of 2 or more) is connected to a wiring branch tool by X × Y = Branching into V pairs of application / receive terminals, and pressure sensors are connected to the branched V pairs of application / receive terminals via cables, respectively, and the pressure sensors are connected to the V seats. A working weight is installed in each seat.

(Invention of Claim 2)
According to the present invention, a terminal group of an analysis processing apparatus having X application terminals (X is a natural number of 2 or more) and Y receive terminals (Y is a natural number of 2 or more) is connected to a wiring branch tool by X × Y = Branching to V pairs of application / receive terminals, and connecting the pressure sensors to the branched V pairs of application / receive terminals via cables, respectively, the pressure sensors are divided into V pieces. The unit floor surface is installed to detect the weight acting on the unit floor surface for each unit floor surface.

(Invention of Claim 3)
The long-distance pressure distribution measurement system according to the present invention relates to the invention according to claim 1 or 2, wherein the wiring branching tool has X application terminals (X is a natural number of 2 or more). A group, a first wiring group extending from each terminal of the application terminal group, and a first branch wiring drawn out from each wiring of the first wiring group in X parts are assembled for each part. A first base material provided with X first branch wiring groups and X sensor connection side application terminal groups provided at terminals of the respective wirings in the first branch wiring groups,
A receiving terminal group on the processing apparatus connection side having Y (Y is a natural number of 2 or more) receiving terminals, a second wiring group extending from each terminal of the receiving terminal group, and a second wiring group Y number of second branch wiring groups, each of which is a group of second branch wirings each branching into Y lines, and Y sensor connection side receive provided at the terminals of the Y second branch wiring groups A second base material provided with a terminal group;
The connection terminal part on the processing device connection side is composed of the pair of application / receive terminals on the processing device connection side, and the connection terminal part on the sensor connection side is composed of the pair of application / reception terminals on the sensor connection side. is there.

(Invention of Claim 4)
The long-distance pressure distribution measuring system according to the present invention relates to the invention according to claim 1 or 2, wherein the wiring branching tool has Y (Y is a natural number of 2 or more) receive terminals on the processing apparatus connection side. A group, a first wiring group extending from each terminal of the receive terminal group, and a first branch wiring drawn out from each wiring of the first wiring group at Y parts for each part. A first base material comprising Y first branch wiring groups and Y sensor connection side receive terminal groups provided at the terminals of each wiring in each first branch wiring group;
An application terminal group on the processing apparatus connection side having X (X is a natural number of 2 or more) application terminals, a second wiring group extending from each terminal of the application terminal group, and a second wiring group Application of X second branch wiring groups, each of which is a group of X second branch wirings, each of which is branched into X lines, and X sensor connection sides provided at the terminals of the X second branch wiring groups A second base material provided with a terminal group;
The connection terminal part on the processing device connection side is composed of the pair of application / receive terminals on the processing device connection side, and the connection terminal part on the sensor connection side is composed of the pair of application / reception terminals on the sensor connection side. is there.

(Invention of Claim 5)
The long-distance pressure distribution measuring system according to the present invention relates to the invention according to any one of claims 1 to 4, wherein the pressure sensor is formed by printing a sensor component on each of a pair of base films. The component has an application electrode group, an application wiring group, and an application terminal group, and is formed by printing a pressure-sensitive ink layer on each application electrode, and the other sensor component is a receive electrode group, a receive wiring group, and a receive terminal group. And a pressure-sensitive ink layer printed on each receive electrode, and a pressure-sensitive portion is formed by facing both pressure-sensitive ink layers, and a pair of base films are bonded to each other. Yes.

  In the long-distance pressure distribution measurement system according to the present invention, the apparatus is not increased in size and cost. That is, the apparatus can be reduced in size and cost.

  Hereinafter, an embodiment as the best mode for carrying out the long-distance pressure distribution measurement system of the present invention will be described in detail.

  FIG. 1 is a conceptual diagram of a long-distance pressure distribution measurement system for train seat management (hereinafter referred to as a train seat management system), and FIG. 2 is a plan view of a pressure sensor S used in the train seat management system. 3 is an exploded view of the pressure sensor S, FIGS. 4 to 9 are explanatory views of a wiring branch D used in a train seating management system, and FIG. 10 is a description of scanning of the pressure sensor S by the analysis processing device PC. The figure is shown.

(About this train seating management system)
In this train seating management system, as shown in FIG. 1, the analysis processing device PC, connector CT, connector ST, relay connector C1, wiring branching tool D, relay connector C2, FPC cable K, relay connector C3, pressure The sensors S are connected in the order, and in the connected state, the weight (force or pressure) applied to the pressure sensitive part 92 of the pressure sensor S by the scanning by the analysis processing device PC is detected as an electric resistance value.

  In this embodiment, as shown in FIG. 1, the terminal group of the connector CT, the connector ST, and the terminal group of the relay connectors C1 and C2 of the analysis processing apparatus each have four pairs of application / receive terminals, The relay connector C3 has a pair of application / receive terminals. Further, the wiring branching tool D has four pairs of application / reception terminals on the analysis processing apparatus PC side, and the pressure sensor S side has sixteen pairs of application / reception terminals.

The main configuration of this train seating management system will be described below.
(About pressure sensor S)
As shown in FIG. 2 and FIG. 3, the pressure sensor S has a linear wiring portion 91 extending from the terminal portion 90 and extending from the wiring in order to enable mounting on a complicated shape or curved surface. Two pressure sensitive parts 92 (four in total) are branched on the left and right.

  Here, as shown in FIGS. 2 and 3, the pressure sensor S prints and forms the receive electrodes 92a (four pieces), the wiring 91a (one piece), and the receive terminals 90a (one piece) and also on the receive electrode 92a. A base film 9a formed by printing a pressure-sensitive ink layer 92a ', an application electrode 92b (four pieces), a wiring 91b (one piece) and an application terminal 90b (one piece) are printed and formed on the application electrode 92b. A base film 9b formed by printing a pressure-sensitive ink layer 92b ′ is provided, and an insulating layer is formed except for the pressure-sensitive ink layer 92a ′ on the receive electrode 92a side and the pressure-sensitive ink layer 92b ′ of the application electrode 92b. The base films 9a and 9b are bonded to each other.

  Next, the materials constituting the pressure sensor S are as follows.

"Base film 9a, 9b"
Any resin can be used as long as it has flexibility. For example, a polyester resin, a polyimide resin, or the like can be used. The thickness is 10 to 100 μm.

“Applying electrode 92b, receiving electrode 92a, wiring 91a, wiring 91b, receiving terminal 90a, applying terminal 90b”
These are made of conductive ink. Examples of the conductive ink include silver ink obtained by mixing various powders (for example, polyester resin) with silver powder. The printed conductive ink has a thickness of 10 to 20 μm.

“Pressure-sensitive ink layers 92a ′ and 92b ′”
The resin is composed of ink containing semiconductor particles and conductor particles. The thickness is 10 to 50 μm.

"Insulation layer"
It is composed of an ultraviolet curable resin. The thickness is 10-50 μm.

All the materials described above can be applied to the wiring branching tool D described later.
(About the structure of the wiring branch tool D)
As shown in FIG. 4, the wiring branching tool D includes a first base material A, a second base material B, and an intermediate insulating layer interposed between the first base material A and the second base material B. C.

  As shown in FIG. 4, the first base material A includes an application terminal group 1 on the processing apparatus connection side having four application terminals 10 on the resin film F <b> 1 having elasticity (or flexibility), and the application terminals. A first wiring group 2 extended from each terminal of the group 1 and a first branch wiring 30 led out from each wiring of the first wiring group 2 at four parts are assembled for each part. Four first branch wiring groups 3 and four sensor connection side application terminal groups 4 provided at the terminals of the respective wirings in the first branch wiring groups 3 are provided. Specifically, the first base material A includes a part of each wiring 20 of the first wiring group 2 printed on the resin film F1 and the first branch wiring group 3 as shown in FIG. As shown in FIG. 6, an insulating layer H having many through holes h and printed to cover a part of each wiring 20 of the first wiring group 2 and the first branch wiring group 3, and FIGS. As shown, the wiring group 21 printed and formed on the insulating layer H is laminated and integrated so as to connect the first wiring group 2 and the first branch wiring group 3 through the through hole h. ing.

  As shown in FIG. 4, the second base material B includes a receive terminal group 5 on the processing apparatus connection side having four receive terminals 50 on a resin film F2 having elasticity (or flexibility), and the receive terminals. The second wiring group 6 extending from the terminals of the group 5 and the second branch wiring 70 each branching the respective wirings of the second wiring group 6 into four second groups are formed. A branch wiring group 7 and four sensor connection-side receive terminal groups 8 provided at the terminals of the four second branch wiring groups 7 are provided.

  The intermediate insulating layer C is formed in accordance with the planar view shapes of the first base material A and the second base material B as shown in FIG.

  Then, the first base material A and the second base material B are bonded to each other via the intermediate insulating layer C shown in FIG. 9, and the processing apparatus is connected by the application / receive terminals 10 and 50 that make a pair. The connection terminal portion T1 on the sensor connection side is constituted by the application / receive terminals 40 and 80 that form a pair, and the connection terminal portion T2 on the sensor connection side.

(About the number of pressure sensors S that can be scanned when the wiring branch tool D is used)
When this wiring branch tool D is used, the connection terminal T1 on the analysis processing apparatus side has only four terminals t, but as shown in FIG. Sixteen (4 × 4) pressure sensors S can be connected, and as a result, scanning with sixteen pressure sensors S becomes possible. That is, by using this wiring branch tool D, it is possible to determine whether or not a person is seated in as many as sixteen (4 × 4) seats Z.

(Scanning of the pressure sensor S by the analysis processing device PC)
As shown in FIG. 10, this system has a circuit for reading the output from the pressure sensor S, and is connected to the analysis processing apparatus PC via the interface circuit IF. The basic operations of the analysis processing apparatus PC, the interface circuit IF, and the output reading circuit are disclosed in Japanese Patent Publication No. 62-502665, and will not be described in detail here.

  The switch SW and the resistor R shown in FIG. 10 are expressed as a schematic diagram of the resistance value of the pressure sensing unit 92. When pressure is applied to the pressure sensing unit 92, the switch SW is closed and the application side The resistance value between the receive-side electrodes 92b and 92a is switched from infinite (high resistance) to several Ω (low resistance).

(1) First, when reading the output information from the pressure sensor S described above, the reading circuit and the application side / receive side electrodes 92b and 92a are connected via the relay connector C1 as shown in FIG.

(2) Here, the applied voltage (−V) is applied via the amplifier 103 (the input side of the amplifier 103 is kept at the ground potential by the resistor 102) by the clock signal “H” from the interface circuit IF. Applied to the side electrode 92b.

(3) The switch of the multiplexer 106 is switched by the output from the column counter 107 between the application of the voltage to the application side electrode 92b and the application of the voltage to the application side electrode 92b by the next clock signal “H”. The side electrode 92a is scanned in order.

(4) Here, when pressure is applied to the pressure sensing unit 92, the switch SW is closed, and the low resistance corresponding to the pressure decreases and changes, and current flows in sequence through the receive side electrode 92a. 104 and amplifier 105 invert and amplify. The inverted and amplified output voltage is sequentially sent to the register 108 by the column multiplexer 106 and sent to the interface circuit IF as a digital signal.

(5) In this embodiment, the information sent to the interface circuit IF is read by the personal computer PC, and a number corresponding to the pressure applied to the pressure sensing unit 92 is displayed on the display. Yes.

(About the excellent effects of this train seating management system)
In this train seating management system, as described above, a large number of unitized pressure sensors S are connected by the FPC cable K, and the signal processing is performed using the wiring branching tool D. It is possible to measure the pressures of the large number of pressure sensors S (with or without seating) with a single system.

  Therefore, according to the configuration of the train seating management system, the apparatus can be reduced in size and cost.

(Regarding the configuration of the wiring branch D for attaching the pressure sensor S to more seats Z)
“Terminals such as connector CT”
Assume that the terminal group of the connector CT, the terminal group T, and the terminal groups of the connectors C1, C2, and C3 of the analysis processing apparatus each have 14 application / receive terminals (an example).

“Configuration examples of the first base material A and the second base material B”
In the present invention, an application terminal group 1 on the processing apparatus connection side having X application terminals 10 (X is a natural number of 2 or more), and a first wiring extended from each terminal of the application terminal group 1. A group 2, X first branch wiring groups 3 formed by collecting the first branch wirings 30 drawn out from the respective wirings of the first wiring group 2 in X parts for each part, and each first branch A first base material A comprising X sensor connection-side application terminal groups 4 provided at the terminals of each wiring in the wiring group 3;
A receiving terminal group 5 on the processing apparatus connection side having Y receiving terminals 50 (Y is a natural number of 2 or more), a second wiring group 6 extended from each terminal of the receiving terminal group 5, and the first Provided at the terminals of the Y second branch wiring groups 6 and the Y second branch wiring groups 6 which are a group of the second branch wirings 60 obtained by branching each wiring of the two wiring groups 6 into Y lines. A second base member provided with Y terminal terminals 4 on the sensor connection side,
The connection terminal portion T1 on the processing apparatus connection side is formed by the pair of application / reception terminals 10 and 50 on the processing apparatus connection side, and the connection terminal section T1 on the sensor connection side is formed by the application / reception terminals 40 and 80 on the sensor connection side. Each part T2 is configured.

  In this configuration, if X = 14 and Y = 14, four sensor connection side terminal portions T2 (each sensor connection side terminal portion T2 is sufficient for one processing device connection side terminal portion T1). It has four application / receive terminals on the sensor connection side. Therefore, when the terminal T on the analysis processing apparatus side described above is used, force and pressure can be measured with 14 × 14 = 196 pressure sensors S.

  With this configuration, the pressure sensors S can be attached to the 196 seats Z, respectively.

  Note that X and Y need not be the same number, and can be set to X = 10 and Y = 13, for example.

  FIG. 11 shows a conceptual diagram of a long-distance pressure distribution measurement system (hereinafter referred to as a movement management system) for monitoring a walking movement of a person, an animal, or the like provided on the floor.

  This movement management system is laid on the floor of the room or gate, and as shown in FIG. 11, as in the system of the first embodiment, the analysis processing device PC, the connector CT, and the analysis processing device side. The connection tool ST, the relay connector C1, the wiring branch tool D, the relay connector C2, the FPC cable K, the relay connector C3, and the pressure sensor S are connected in this order.

  As shown in FIG. 11, the pressure sensor S is composed of four rectangular pressure-sensitive portions 92, and forms the large square floor as a whole.

  Here, the pressure sensor S prints and forms the receive electrodes 92a (four pieces), the wiring 91a (one piece), and the terminals 90a (one piece) in the same manner as in the first embodiment, and senses on the receive electrode 92a. A base film 9a formed by printing a pressure ink layer 92a ', an application electrode 92b (four pieces), a wiring 91b (one piece) and a terminal 90b (one piece) are printed and formed on the application electrode 92b. A base film 9b formed by printing a layer 92b ', and a base is formed through an insulating layer except for the pressure-sensitive ink layer 92a' on the receive electrode 92a side and the pressure-sensitive ink layer 92b 'on the application electrode 92b. The films 9a and 9b are configured to be bonded to each other (see FIGS. 2 and 3). In the second embodiment, as shown in FIG. 12, four pressure sensors S are arranged to have sixteen (four vertical × four horizontal) pressure sensitive portions 92.

  Further, the same scan as that of the first embodiment can be employed for the scan of the pressure sensor S by the analysis processing apparatus PC.

  Furthermore, when creating a movement management system having more pressure-sensitive points, the wiring branches described in the column of the first embodiment (about the configuration for mounting pressure sensors S on more seats Z) What has the same configuration as the tool D may be used. In this way, mobility management can be performed in more detail or over a wide range.

(About the excellent effect of this mobility management system)
In this movement management system, as described above, a large number of unitized pressure sensors S are connected by the FPC cable K, and signal processing is performed using the wiring branching tool D. Distribution can be measured with a single system.

  Therefore, according to the configuration of the mobility management system, the apparatus can be reduced in size and cost.

(Other embodiments)
In Examples 1 and 2 described above, the outermost layers of the first and second substrates are made of a resin film having elasticity, but the present invention is not limited thereto, and may be a printed circuit board. In this way, when the first and second base materials are formed of a printed circuit board, wiring or the like can be formed by ordinary etching. Furthermore, the outermost layer of the first and second base materials may be a metal plate with an insulating coating provided that printing is possible.

  The above-described wiring branching tool D of the first and second embodiments is an example, and an analysis processing apparatus including X application terminals (X is a natural number of 2 or more) and Y receive terminals (Y is a natural number of 2 or more). The terminal group may be divided into X × Y = V pairs of application / receive terminals by the wiring branching tool.

The conceptual diagram at the time of applying the long distance pressure distribution measurement system of Example 1 of this invention to the system for seating management of a train. The top view of the pressure sensor S used for the said seating management system of a train. The exploded view of the pressure sensor S. FIG. The perspective view of the wiring of the wiring branch path used for the said system. The top view which shows the state which printed and formed a part of 1st wiring group and the 1st branch wiring group on the resin film. The top view of the insulating layer which has a through hole. The top view of the wiring group printed and formed on the insulating layer so that a part of 1st wiring group and a 1st branch wiring group may be connected through a through hole. The top view which shows the state which printed and formed one 2nd processing apparatus connection side terminal, the 2nd wiring, the 2nd branch wiring, and the 2nd sensor connection side terminal on the resin film. The top view of the intermediate | middle insulating layer interposed between the 1st base material and the 2nd base material. Explanatory drawing of the system for making the output from the said pressure sensor read by an analysis processing apparatus. The conceptual diagram at the time of applying the long distance pressure distribution measurement system of Example 2 of this invention to the system for movement management.

Explanation of symbols

PC analysis processing device S pressure sensor Z seat CT connector ST connector D wiring branching device A first base material B second base material C intermediate insulating layer H insulating layer h through hole T1 processing device connection side connection terminal portion T2 sensor connection Side connection terminal portion F1 resin film F2 resin film 1 processing device connection side application terminal group 2 first wiring group 3 first branch wiring group 4 sensor connection side application terminal group 5 processing device connection side receive terminal group 9a base Film 9b Base film 10 Application terminal 20 Wiring 21 Wiring group 30 First branch wiring 40 Application terminal 50 Receive terminal 60 Second wiring 70 Second branch wiring 80 Receive terminal 90 Terminal portion 90a Receive terminal 90b Application terminal 91 Wiring portion 91a Wiring 91b Wiring 92 Pressure-sensitive part 92a Receive electrode 92b Applied electrode 92a 'Pressure-sensitive ink layer 92b 'pressure sensitive ink layer

Claims (5)

A terminal group of an analysis processing device having X application terminals (X is a natural number of 2 or more) and Y receive terminals (Y is a natural number of 2 or more) is connected to X · Y = V pairs by a wiring branching tool. A pressure sensor is connected to each of the branched V application / receive terminals via a cable, and the pressure sensor has a weight acting on the V seats. A long-distance pressure distribution measurement system that is installed in each seat. A terminal group of an analysis processing apparatus having X application terminals (X is a natural number of 2 or more) and Y receive terminals (Y is a natural number of 2 or more) is connected to X × Y = V pairs by a wiring branching tool. A pressure sensor is connected to each of the branched V application / receive terminals via a cable, and the pressure sensor is divided into V units. A long-distance pressure distribution measuring system which is installed on each unit floor to detect the weight acting on the surface for each unit floor. The wiring branching tool includes an application terminal group on the processing apparatus connection side having X application terminals (X is a natural number of 2 or more), a first wiring group extending from each terminal of the application terminal group, X first branch wiring groups formed by collecting the first branch wirings drawn out from the respective wirings of the first wiring group at X parts for each part, and terminals of the respective wirings in each first branch wiring group A first base material comprising X sensor connection-side application terminal groups provided on
A receiving terminal group on the processing apparatus connection side having Y (Y is a natural number of 2 or more) receiving terminals, a second wiring group extending from each terminal of the receiving terminal group, and a second wiring group Y number of second branch wiring groups, each of which is a group of second branch wirings each branching into Y lines, and Y sensor connection side receive provided at the terminals of the Y second branch wiring groups A second base material provided with a terminal group;
The connection terminal part on the processing device connection side is composed of the pair of application / receive terminals on the processing device connection side, and the connection terminal part on the sensor connection side is composed of the pair of application / reception terminals on the sensor connection side. The long-distance pressure distribution measuring system according to claim 1 or 2, wherein The wiring branching tool includes a receiving terminal group on the processing apparatus connection side having Y (Y is a natural number of 2 or more) receiving terminals, a first wiring group extending from each terminal of the receiving terminal group, Y first branch wiring groups formed by collecting the first branch wirings drawn out from the respective wirings of the first wiring group at Y parts for each part, and terminals of the respective wirings in the respective first branch wiring groups A first base material provided with a group of Y sensor receiving terminals on the sensor connection side;
An application terminal group on the processing apparatus connection side having X application terminals, a second wiring group extending from each terminal of the application terminal group, and each wiring of the second wiring group are branched into X lines. A second group including X second branch wiring groups each including the second branch wirings grouped together, and X sensor connection-side application terminal groups provided at terminals of the X second branch wiring groups. Comprising a base material,
The connection terminal part on the processing device connection side is composed of the pair of application / receive terminals on the processing device connection side, and the connection terminal part on the sensor connection side is composed of the pair of application / reception terminals on the sensor connection side. The long-distance pressure distribution measuring system according to claim 1 or 2, wherein The pressure sensor is formed by printing sensor components on a pair of base films, and one sensor component has an application electrode group, an application wiring group, and an application terminal group, and a pressure-sensitive ink layer on each application electrode. The other sensor component has a receive electrode group, a receive wiring group, and a receive terminal group, and a pressure-sensitive ink layer is printed on each receive electrode, and both pressure-sensitive ink layers are opposed to each other. 5. The long-distance pressure distribution measurement system according to claim 1, wherein the pressure-sensitive portion is formed by bonding a pair of base films to each other.

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