JP6539126B2 - Swing detection drive device and swing detection drive method - Google Patents

Description

  The present invention relates to a device for detecting and driving vibration, and in particular to power saving.

  A device that detects shaking such as an earthquake and performs processing such as notification has been proposed and used.

  For example, in order to reduce damage caused by river flooding, debris flow, landslides, etc. frequently occurring all over the country, a system (disaster network) that detects and reports shaking is necessary. These disasters often occur in places where there is no power supply infrastructure, and the construction of disaster networks is based on the use of battery-powered shake detection sensors.

  Patent Document 1 discloses a battery-powered device that detects an earthquake and outputs an alarm.

  Further, Patent Document 2 discloses a device that detects a shake and causes a light emitting diode (hereinafter referred to as “LED”) to emit light. The device of Patent Document 2 supplies power from the battery to the LED only when the container is in a predetermined posture, conditions such as detection of shaking are satisfied. By this, it is intended to realize power saving.

JP 10-334367 JP JP 2014-110208

  However, in the device of Patent Document 1, since the shake is detected using a force balance type accelerometer, it is necessary to always supply a current for operating the accelerometer, and the battery is consumed quickly. There was a problem.

  Further, in the device of Patent Document 2, power consumption is reduced by causing the LED to emit light only when a shake is detected. However, a current must always be supplied to a sensor for detecting a shake, and there is also a problem that the battery is consumed quickly.

  As described above, power consumption for detecting shaking is a problem not only for detecting disasters such as earthquakes, but also for all devices that detect shaking and perform some processing, such as anti-theft devices.

  An object of the present invention is to provide a shake detection and drive device which solves the problems as described above and achieves more power saving.

  Several independently applicable features of the present invention are presented below.

(1) The shake detection and drive device according to the present invention is electrically connected to each other when the movable body that moves in response to the shake, the holding member that holds the movable body so as to be able to rock, and the movable body are at the stop position. When the potential of the first conductor and the second conductor, which are mutually conducted by the movement of the movable body, the battery power source connected to the first conductor, and the potential of the second conductor exceed a predetermined potential A main switch circuit that supplies a power supply voltage from the battery power supply to a processing circuit that performs predetermined processing, and the processing circuit that receives and drives the power supply voltage.

  Therefore, it is not necessary to supply a current for detection to an electrical sensor or the like for detecting a shake, and power consumption in the standby state can be reduced.

(2) The shake detection and drive device according to the present invention is characterized in that the holding member has a recess for holding the movable body so as to be able to swing.

  Therefore, the sensitivity of shake detection can be increased while having a simple structure.

(3) In the shake detecting and driving device according to the present invention, the moving body is spherical, and at least the surface is a conductor, and the first conductor and the second conductor alternate on the surface of the recess. It is characterized in that a plurality of sets are provided at intervals.

  Therefore, the movement of the moving body causes the first conductor and the second conductor to conduct through the moving body, so that the shake can be detected.

(4) In the shake detecting and driving device according to the present invention, a part of the first conductor and the second conductor is extended in a first direction, and the first conductor and the The remaining portion of the two conductors is characterized in that it is extended in a direction different from the first direction so as to intersect the first conductor and the part of the second conductor. There is.

  Therefore, not only swings in one direction but also swings in different directions can be detected.

(5) The shake detection and drive device according to the present invention is characterized in that the first conductor and the second conductor are formed in a zigzag shape, a wave shape, or a concentric circle shape.

  Therefore, not only swings in one direction but also swings in different directions can be detected.

(6) The shake detecting and driving device according to the present invention is characterized in that the movable body is cylindrical and at least the surface is a conductor.

  Therefore, the swing in one direction can be detected with priority.

(7) The shake detecting and driving device according to the present invention is characterized in that the moving body is at a position where the first conductor and the second conductor do not conduct each other when the moving body is at the stop position of the recess. A first conductor and the second conductor are provided.

  Therefore, the movement of the moving body causes the first conductor and the second conductor to conduct through the moving body, so that the shake can be detected.

(8) The shake detecting and driving device according to the present invention is one of the outer shape of the moving body at the center of the bottom of the recess so that the holding member returns to the stop position after the moving body moves due to the shake. It is characterized by having a central recess of a shape corresponding to the part.

  Therefore, the mobile unit can be returned to the same stop position after the shaking is settled.

(9) In the shake detection drive device according to the present invention, the battery power source, the first conductor, the second conductor, and the main switch circuit are connected in series, and any of the battery power source to the main switch circuit And the processing circuit is driven by the movement of the movable body, and after the predetermined processing is completed, the pair of the first conductor and the second conductor is conducted. It is characterized in that a conduction judging circuit which judges whether each pair is present or not is driven to turn off the selection switch of the pair of the first conductor and the second conductor which are in conduction.

Therefore, even if the moving object stops at a different position after the shaking is settled, it can be properly placed on standby
(10) In the shake detecting and driving device according to the present invention, the main switch circuit includes a field effect transistor in which a drain and a source are connected between the processing circuit and the battery power supply, and the second conductor at an input. And a flip flop connected to the output and to which the gate of the field effect transistor is connected.

  Therefore, only the leakage current flows during standby, and power consumption can be further reduced.

(11) The shake detection and drive device according to the present invention is characterized in that the processing circuit includes a vibration sensor, and includes a transmission circuit that transmits a processing result based on the detected vibration.

  Therefore, processing based on vibrations such as earthquakes can be performed, and the processing result can be transmitted to the outside.

(12) A shake detection and drive device according to the present invention includes a housing containing the movable body, the holding member, the first conductor and the second conductor, the battery power supply, and the processing circuit. The housing may be provided with a weight member such that the movable body is held in the recess of the holding member.

  Therefore, even if the installation location is inclined, the posture can be maintained so that the movable body can be properly held in the recess.

(13) The shake detection and drive device according to the present invention alternately includes a moving body that moves in response to a shake, a holding member having a recess for holding the mover in a swingable manner, and a surface of the recess. A plurality of spaced apart first conductors and second conductors, a first battery power source whose positive potential side is connected to the first conductor via a first selection switch, and A second battery power supply whose positive potential side is connected to the first conductor via a backflow prevention element, and a first control line connected to the second conductor via a second backflow prevention element; An input is connected to a second control line connected to the second conductor via a second selection switch and the first control line, and a ground is connected to the ground side of the first battery power supply. An input is connected to the first isolation amplifier and the second control line, and the ground is the second A second isolation amplifier connected to the ground side of the battery power supply, and a predetermined potential when at least one of the output of the first isolation amplifier and the output of the second isolation up exceeds a predetermined potential; And a processing circuit that supplies a power supply voltage to a processing circuit that performs the processing of (b) and the processing circuit that receives and drives the power supply voltage.

  Therefore, it is not necessary to supply a current for detection to an electrical sensor or the like for detecting a shake, and power consumption in the standby state can be reduced. Furthermore, by providing two battery power sources, even if the movement of the mobile body is small, the movement can be detected.

(14) In the shake detection drive method according to the present invention, the movable body is held swingably in the recess, and power supply to a circuit for performing a predetermined process is started by the movable body moved in response to the shake. I have to.

  Therefore, it is possible to suppress the power consumption in the standby state without shaking.

  The term "moving body" refers to one that is held so as to swing by shaking, and is a concept that includes not only a conductor but also an insulator. When using a holding member having a recess, it is possible to use not only a spherical shape, a cylindrical shape, but also a semicircular shape, a semicylindrical shape, a conical shape, a polygonal shape, a polygonal pyramid shape, an oval injection shape, and the like. In the embodiment, the sphere 30 and the cylinder 31 correspond to this. In the case of holding by an elastic body or a magnetic force, there is no restriction on the shape.

  The term "holding member" refers to one that holds a movable body in a pivotable manner, and is a concept including not only one physically held by a recess or an elastic member, but also one held by a magnetic force or the like. In the embodiment, the base member 28 corresponds to this.

  The term "processing circuit" refers to a circuit for performing predetermined processing, and is a concept including not only a circuit for performing processing such as analysis and notification of vibration but also a circuit for performing only processing of data transmission. Further, the concept includes not only one provided with a central processing unit (hereinafter referred to as “CPU”) but also a circuit provided with a logic circuit and the like. In the embodiment, the processing circuit 24 corresponds to this.

  The “first conductor and the second conductor which do not conduct each other” refer to at least one set of conductors configured to conduct as a result of the movement of the movable body. When a plurality of sets of the first conductor and the second conductor are provided, at least one set is in conduction with each other although it does not prevent providing the set of the first conductor and the second conductor in the conductive state. It is necessary to be in a state where

  The “program” is a concept including not only a program directly executable by the CPU but also a program in source format, a program subjected to compression processing, an encrypted program and the like.

FIG. 1 is a diagram showing an entire configuration of a shake detection drive device according to an embodiment of the present invention. FIG. 2 is a view showing the details of a shake detection mechanism 10; It is sectional drawing of a vibration alerting | reporting apparatus. It is a circuit block diagram of a vibration alerting | reporting apparatus. FIG. 5 is a circuit diagram of a column selection circuit 5; It is a hardware configuration of the processing circuit 24. 7 is a flowchart of a control program 74. 7 is a flowchart of a control program 74. It is another circuit example for current detection. It is a figure which shows the input-output characteristic of operational amplifier (it describes with an "op amp" hereafter) 57d. It is a figure which shows the example of arrangement | positioning of the 1st conductor 8 and the 2nd conductor 14. FIG. FIG. 7 is a diagram for describing a case where a plurality of column selection circuits 5 are provided. It is a figure for demonstrating the case where the column selection circuit 5 and the battery power supply 2 are provided with two or more. It is a circuit diagram of column selection circuit 5a. It is a circuit diagram of column selection circuit 5b. It is a figure which shows the example which arrange | positioned the 1st conductor 8 and the 2nd conductor 14 in the grid | lattice form. It is a figure which shows the example at the time of using the cylindrical body 31 as a moving body. It is a figure which shows the whole structure of the shake detection drive apparatus by 2nd embodiment. 8 is a cross-sectional view showing another example of the base member 28. It is a circuit block diagram of a vibration alerting | reporting apparatus. It is a figure which shows the example of arrangement | positioning of the 1st conductor 8 and the 2nd conductor 14. FIG.

1. First embodiment
1.1 Outline of Device FIG. 1 shows a circuit configuration of a shake detection drive device according to an embodiment of the present invention. The processing circuit 24 is activated when power is supplied to the power supply line VDD. Since the main switch circuit 22 is normally off, power from the battery power supply 2 is not supplied, and the processing circuit 24 is not driven.

  When the shake detection mechanism 10 detects a shake, the processing circuit 24 is thereby driven to perform processing. The physical configuration of the shake detection mechanism 10 is shown in FIG. 2A. A recess 32 is provided at the center of the base member 28 formed of an insulator. On the upper surface of the base member 28, a plurality of first conductors 8 and a plurality of second conductors 14 are alternately provided in a row. As shown in FIG. 1, three sets of A set, B set and C set are provided. As shown in FIG. 2A, the first conductor 8 and the second conductor 14 are spaced apart and configured so as not to conduct each other without the spheres 30. Further, as shown in FIG. 2B, the first conductor 8 and the second conductor 14 in which the sphere 30 is located are electrically connected by the sphere 30.

  The concave portion 32 holds a sphere 30 constituted by a conductor. That is, the sphere 30 which is a moving body is held in the recess 32 so as to be able to swing.

  In FIG. 1, the shake detection mechanism 10 is indicated by a broken line. The contact portion 12 represents a region where the sphere 30 of FIG. 2A is in contact with the surface of the recess 32. In FIG. 1, the contact part 12 in the state (stop position) which does not shake is shown. In the rest position, the B sets of the first conductor 8 and the second conductor 14 are in electrical communication with one another via the sphere 30 of FIG. 2A.

  As shown in FIG. 1, the first conductors 8 of each set are connected to the battery power supply 2 via the column selection circuit 5. The column selection circuit 5 has a switch (not shown) for each set. The set of switches B conducted by the sphere 30 of FIG. 2A is turned off. Therefore, the voltage of the battery power supply 2 is not supplied to the B second conductor 14.

  Further, although the switches of the A group and the C group are turned on, the first conductor 8 and the second conductor 14 do not conduct since the ball 30 is not located. Therefore, the voltage of the battery power source 2 is not supplied to the second conductor 14 of the A set and the C set.

  Thus, in the initial state (standby state), the voltage of the battery power source 2 is not supplied to any set of second conductors 14.

  In this state, when vibration occurs due to an earthquake or the like, the sphere 30 of FIG. 2A swings in the recess 32. Thus, for example, it is assumed that the sphere 30 in FIG. 2A contacts at the contact portion 13 indicated by the broken line in FIG. For this reason, the first conductor 8 and the second conductor 14 of the C set are conducted, and the voltage of the battery power supply 2 is supplied to the second conductor 14. The main switch circuit 22 is set to be turned on when the potential of the second conductor 14 exceeds a predetermined potential. The potential of the second conductor 14 exceeds the predetermined potential by the voltage of the battery power supply 2, and the main switch circuit 22 is turned on. Therefore, the voltage of the battery power supply 2 is supplied to the power supply input of the processing circuit 24 by the power supply line VDD. Accordingly, the processing circuit 24 is driven to execute predetermined processing (such as notification of the occurrence of an earthquake).

  When the processing circuit 24 finishes the predetermined processing, it detects a new stop position of the sphere 30 of FIG. 2A, turns off the corresponding set of switches in the column selection circuit 5, and supplies the power to the second conductor 14 Stop. When the contact portion 13 is formed by the new stop position, the switch corresponding to the C set is turned off. The switches of A set and B set are turned on.

  When the power supply from the battery power supply 2 to the second conductor 14 is stopped, the main switch circuit 22 receives this and is turned off. Therefore, the voltage supply from the battery power supply 2 to the processing circuit 24 is also stopped, and the processing circuit 24 is stopped.

  In this way, the shake detection drive returns to the standby state. In the present embodiment, even if the stop position of the sphere 30 changes due to the vibration, the standby state can be reliably returned.

  In the standby state, the processing circuit 24 is stopped and there is no consumption of power. Further, since the voltage of the battery power supply 2 is supplied by the physical operation due to the shaking, there is no current consumption by the sensor for detection, and the power consumption in the standby state can be reduced.

As described above, since the shake detection and drive apparatus according to the present embodiment consumes little power during standby, it can be used for a long time with a small capacity battery.

1.2 Vibration Informing Device An example in which the vibration detecting and driving device is used as a vibration informing device will be described below. FIG. 3 shows a cross-sectional view of the vibration notification device. The processing circuit 24, the battery power source 2 (button battery), the main switch circuit 22, the column selection circuit 5, the base member 28, the sphere 30, the antenna 34, and the weight 36 as a weight member are housed inside the housing 40. There is. The housing 40 is composed of an upper housing and a lower housing (not shown), and after the above-mentioned storage items are stored in the lower housing, the upper housing is fixed to the lower housing by adhesion or the like. Finalize.

  By storing the weight 36, it is possible to maintain the correct posture (the posture in which the ball 30 can be held in the recess 32) even if the place where the device is placed is inclined.

  The circuit configuration is shown in FIG. Line VBB is connected to battery power supply 2. In the present embodiment, the main switch circuit 22 is composed of a flip flop 18 and a P channel MOS field effect transistor (hereinafter referred to as "P channel MOS-FET") 20.

  In the present embodiment, the first conductor 8a and the second conductor 14a form an A set. Hereinafter, in the same manner, groups B to G are configured (only a part of reference numerals is given in the figure).

  The second conductors 14a to 14g are connected to the main switch control line CL. The main switch control line CL is provided as an input of the flip flop 18 of the main switch circuit 22. Further, to the main switch control line CL, a self stop switch 52 by an N channel MOS field effect transistor (hereinafter referred to as "N channel MOS-FET") and a switch 50 for current measurement by an N-channel MOSFET are connected. ing. Furthermore, a capacitor 54 is also connected to remove high frequency noise superimposed on the main switch control line CL.

  The details of the column selection circuit 5 are shown in FIG. FIG. 5 shows a circuit portion connected to the D set. A switch 51 d (P-channel MOS-FET) is provided between the first conductor 8 d and the line VBB connected to the battery power supply 2 of FIG. 4. The output of the flip flop 4 d is given to the gate of the switch 51 d. In the standby state, the D sets of switches 51d in which the first conductor 8d and the second conductor 14d are in contact with each other by the sphere 30 of FIG. 3 are turned off. The switches 51a to 51c and 51e to 51g of the groups A to C and the groups E to G are turned on.

  The first conductor 8d is provided with a current detection circuit 58d, the detection output of which is given to the input of the flip flop 4d via the selection switch 7d. The current detection circuit 58d is used to detect the stop position of the sphere 30 of FIG. 3 (the process will be described later).

  FIG. 6 shows the hardware configuration of the processing circuit 24 of FIG. A memory 62, a communication circuit 64, a flash memory 66, an acceleration sensor 68, and an input / output interface 70 are connected to the CPU 60.

  The communication circuit 64 is a circuit for transmitting the processing result by wireless communication, and communication using a standard such as Bluetooth or WiFi can be used. The acceleration sensor 68 is a sensor that measures the vibration applied to the present apparatus as acceleration. The input / output interface 70 includes selection lines MSa, MSb... MSg for column selection in the column selection circuit 5 of FIG. 4, a control line CMM for controlling the switch 50 for current detection shown in FIG. The control line SLP which controls the self-stop switch 52 of is connected.

  The flash memory 66 stores an operating system 72 such as TRON (trademark) and a control program 74. The control program 74 cooperates with the operating system 72 to perform its function.

  Hereinafter, the operation of the present apparatus will be described. As described above, in the standby state, no voltage is supplied to any of the second conductors 14a to 14g, and the main switch control line CL is "L" (see FIG. 4). Therefore, the input of the flip flop 18 is "L" and the output is "H". The output "H" of the flip flop 18 is given to the gate of the switch 20 (P-channel MOS-FET), and holds the switch 20 off. Therefore, no voltage is supplied to the power supply line VDD, and the processing circuit 24 does not operate. Thus, in the standby state, the processing circuit 24 does not operate and consumes no power.

  The flip-flop 18 is operated by receiving an operating voltage from the battery power supply 2. However, its output "H" is supplied to the gate of switch 20 (P-channel MOS-FET), and since switch 20 is turned off, no current is consumed. Only a small amount of leakage current flows. Thus, in the standby state, the power consumption is suppressed to a very small amount.

  In the standby state, the sphere 30 of FIG. 3 rests on the D sets of the first conductor 8d and the second conductor 14d. When shaking occurs due to an earthquake or the like, the spheres 30 move on top of other pairs. For example, assume that it has moved to the top of the E set. In the column selection circuit 5, since the switch 51e (P channel MOS-FET) of the E set is on (see FIG. 5), the voltage of the battery power supply 2 is supplied to the second conductor 14e of the E set. Therefore, the main switch control line CL becomes "H".

  At this time, no voltage is supplied to the gates of the switch 50 (N-channel MOS-FET) and the switch 52 (N-channel MOS-FET) because the processing circuit 24 is stopped. Therefore, "H" of the main switch control line CL is applied to the input of the flip flop 18. As a result, the output of the flip flop 18 becomes "L".

  The output "L" of flip flop 18 is applied to the gate of switch 20 (P channel MOS-FET) to turn on switch 20. Therefore, the voltage of the battery power supply 2 is supplied to the power supply line VDD, and the processing circuit 24 is supplied with power. The CPU 60 of FIG. 6 receives power supply to initialize the system.

  Thereafter, the control program 74 is executed. A flowchart of the control program 74 is shown in FIG. 7 and FIG. As shown in FIGS. 7 and 8, first, the CPU 60 of FIG. 6 acquires vibration data from the acceleration sensor 68 and records the vibration data in the flash memory 66 (step S1). When data for a predetermined time (for example, 10 seconds) is accumulated, the CPU 60 analyzes vibration data and determines whether or not it is vibration due to an earthquake (step S2).

  In the case of vibration due to an earthquake (including landslides), the period of the sway is in a range of a predetermined frequency (for example, 0.1 KHz to 2.5 KHz), and the sway continues for a predetermined time (for example, 1 second) or more. On the other hand, when it is kicked by an animal etc., the shaking is within 1 second. Therefore, the CPU 60 performs FFT analysis (discrete Fourier transform analysis) on vibration data, and the ratio of the predetermined frequency component is equal to or higher than a predetermined ratio (for example, 70% or higher), and the vibration exceeding a predetermined threshold exceeds Depending on whether it has continued, it can be determined whether it is an earthquake.

  Next, the CPU 60 transmits the above analysis results (whether or not it is vibration due to earthquake, time and ID of the present apparatus) by the communication circuit 64 of FIG. 6 (step S3). The analysis results are received by the base station. Therefore, if the vibration notification device is installed at each measurement point, it is possible to collect the occurrence situation of the earthquake.

  Next, the CPU 60 acquires vibration data from the acceleration sensor 68 of FIG. 6, and determines whether or not the vibration continues (step S4). If vibration is detected, it waits until the vibration is settled.

  When the vibration is not detected (when the time when the vibration level is less than or equal to the predetermined value continues for a predetermined time), the CPU 60 executes processing for returning to the standby state.

  First, all the switches 51a to 51g (see FIG. 5) corresponding to the respective groups A to G of the column selection circuit 5 are turned on (step S5). The CPU 60 does this by setting the respective selection lines MSa to MSg of the groups A to G to "H". As shown in FIG. 5, when the selection lines MSa to MSg become "H", the switches 7a to 7g (N channel MOS-FETs) are turned on. At this time, all the current detection circuits 58a to 58g do not detect the current and set the output to “H” (set to output “L” when the current is detected). The current detection circuits 58a to 58g operate by receiving voltage supply from the power supply line VDD. Further, since the selection lines MSa to MSg are connected to the enable terminals of the current detection circuits 58a to 58g, detection processing is performed when this is "H".

  As shown in FIG. 4, since the switch 50 for current detection connected to the main switch control line CL is off, all of the switches 51a to 51g in FIG. 5 and the position of the sphere 30 in FIG. In the current detection circuits 58a to 58g (FIG. 5), no current is detected. Therefore, as described above, the outputs of all the current detection circuits 58a to 58g are "H".

  The outputs "H" of the current detection circuits 58a to 58g are applied to the inputs of the flip flops 4a to 4g of FIG. 5 to set the outputs to "L". Thus, the CPU 60 of FIG. 6 turns on all the switches 51a to 51g of each set shown in FIG. 5 by setting the selection lines MSa to MSg to "H".

  Next, the CPU 60 sets the control line CMM of FIG. 4 to “H” to turn on the switch 50 (N-channel MOS-FET) in order to detect the current. Since the source side of the switch 50 is grounded, a current flows in the E group in which the sphere 30 in FIG. 3 is stopped. The CPU 60 detects this as follows.

  First, the selection line MSa corresponding to the group A in FIG. 4 is set to “H” for a predetermined time (step S8). Thereby, the current detection circuit 58a of FIG. 5 detects whether or not the current flows in the first conductor 8a via the coil 56a. Here, since no current flows, the output of the current detection circuit 58a is "H", and the output of the flip-flop 4a is "L". Therefore, the switch 51a is kept on.

  When the process for the group A is completed as described above, the CPU 60 next sets the selection line MSb corresponding to the group B to "H" for a predetermined time (step S8). Here, since the current does not flow also to the group B, the switch 51 b of FIG. 5 is also kept on.

  Similarly, for sets C and D, the switches 51c and 51d of FIG. 5 are maintained on. In the E group, the sphere 30 in FIG. 3 conducts electricity, and the current is detected. Therefore, the output of the current detection circuit 58e of FIG. 5 is "L", and the output of the flip flop 4e is "H". As a result, "H" is given to the gate of the switch 51e (P-channel MOS-FET) to turn it off.

  For sets F and G, the switches 51f and 51g in FIG. 5 are maintained on. When the processing for all the groups is completed, the CPU 60 in FIG. 6 turns the control line CMM in FIG. 4 to “L” to turn off the switch 50 for current measurement (step S10).

  As described above, for the E set conducted by the sphere 30 of FIG. 3, the switch 51e of FIG. 5 is turned off, and the other A to D sets, F set, and G set are turned on. That is, it returns to the standby state. In this state, no voltage is supplied to the main switch control line CL of FIG. 4, the output of the flip flop 18 becomes “H”, and the switch 20 is turned off. Therefore, the processing circuit 24 stops its operation.

  However, since the capacitor 54 is provided, the potential of the main switch control line CL may be maintained for a short time. Therefore, in the present embodiment, the CPU 60 sets the control line SLP to "H" and turns on the switch 52 to forcibly set the potential of the main switch control line CL to "L" (step S11).

As described above, the standby state is entered again. In the standby state, the switch 20 is always supplied with the voltage of the battery power supply 2, but since it is in the off state, only a slight leakage current flows. Furthermore, although the voltage of the battery power supply 2 is always supplied also to the flip flop 18, its output voltage is supplied to the gate of the switch 20, which also causes only a slight leakage current. Therefore, since it consumes little power during standby, it can be used for a long time with a small capacity battery.

1.3 Other
(1) In the above embodiment, the current detection is performed using the coil 56 as shown in FIG. However, as shown in FIG. 9, the current detection may be performed using the resistor 53d and the operational amplifier 57d. In this case, as shown in FIG. 10, it is preferable to provide a slight offset between the input voltage and the output voltage of the operational amplifier 57d. The flip-flop 59d can be the same as the flip-flop 4d shown in FIG.

(2) In the above embodiment, as shown in FIG. 11A, the first conductor 8 and the second conductor 14 are linearly arranged. Therefore, even if the contact portion 12a moves as shown by 12b due to shaking, the main switch control line CL remains "L" and the processing circuit 24 of FIG. 1 is not driven. That is, depending on the application, the detection sensitivity of the shake along the extension direction of the first conductor 8 and the second conductor 14 may not be sufficient.

  Therefore, as shown in FIG. 11B, the first conductor 8 and the second conductor 14 may be arranged in a zigzag shape (or in a wave shape). When the sphere 30 of FIG. 3 is in contact at the contact portion 12a, the first conductor 8d and the second conductor 14d are in conduction. When the ball 30 of FIG. 3 comes into contact at the contact portion 12b due to the shaking, the first conductor 8e and the second conductor 14d conduct. Thereby, the main switch control line CL becomes "H", and the processing circuit 42 of FIG. 1 is driven. In this manner, it is possible to improve the detection sensitivity of the shake along the extension direction of the first conductor 8 and the second conductor 14.

  Furthermore, as shown in FIG. 11C, the first conductor 8 and the second conductor 14 may be alternately arranged concentrically, and the contact portion 12a may be provided in the vicinity of the center. In FIG. 11C, the second conductor 14a, the first conductor 8a, the second conductor 14b, the first conductor 8b,. Each of the first conductors 8a, 8b,... Is led to the column selection circuit 5 by the wiring 9. Each of the second conductors 14a, 14b,... Is connected to the main switch control line CL by a wire 9. The wiring 9 is provided on the lower surface of the second conductor 14a, the first conductor 8a, the second conductor 14b, the first conductor 8b,... Via an insulating layer.

(3) In the above embodiment, as shown in FIG. 12A, the column selection circuit 5 is provided on the side of the first conductor 8, and the second conductor 14 is commonly connected to the main switch control line CL. Therefore, even if the contact portion 12a moves to 12b, the main switch control line CL remains "L", and the processing circuit 24 in FIG. 1 is not driven. That is, even if the contact part moved from 12a to 12b due to shaking, it could not be detected.

  Therefore, as shown in FIG. 12B, the column selection circuit 5b may be provided on the side of the second conductor 14.

  However, in the example of FIG. 12B, the switch 51 of FIG. 5 is turned on for the pair conducted by the sphere 30 of FIG. 3 in both of the column selection circuits 5a and 5b. The switch 51 in FIG. 5 is turned off for a group which is not conducting. Such an operation can be realized by inverting the output of the current detection circuit 58 of FIG.

  As shown in FIG. 12B, when the contact portion by the sphere 30 in FIG. 3 is in the position shown by 12a, the switch 51d of FIG. 5 connected to the first conductor 8d by the column selection circuit 5a is turned on to select the column The switch 51d of FIG. 5 connected to the second conductor 14d by the circuit 5b is turned on. As a result, the main switch control line CL becomes "H".

  In the example of FIG. 12B, the potential of the main switch control line CL is given to the main switch circuit 22 of FIG. 4 through the inverting circuit 90 of FET. Therefore, in the standby state, “L” is given to the main switch circuit 22 to turn it off, and the processing circuit 24 in FIG. 4 is not driven.

  As shown in FIG. 12B, it is assumed that shaking occurs and the contact portion by the sphere 30 of FIG. 3 moves to 12b. At this time, the first conductor 8d and the second conductor 14c conduct. However, the switch 51c of FIG. 5 connected to the second conductor 14c is turned off by the column selection circuit 5b. Therefore, the main switch control line CL becomes "L" and "H" is given to the main switch circuit 22 of FIG. 4 to turn it on, and the processing circuit 24 of FIG. 4 is driven.

  As described above, the sensitivity to vibration can be improved.

  In addition, in the structure of FIG. 12B, the point from which the spherical body 30 of FIG. 3 becomes a positive potential is not necessarily preferable. Therefore, as shown in FIG. 13, two systems of battery power supplies 2a and 2b may be provided. A power supply line VBB1 and a ground line VSS1 are connected to the battery power supply 2a, and a power supply line VBB2 and a ground line VSS2 are connected to the battery power supply 2b.

  Also in this embodiment, the column selection circuit 5a and the column selection circuit 5b are provided. The column selection circuit 5a basically has the same configuration as that of FIG. 5, as shown in FIG. However, not only the power supply line VBB1 is connected to the first conductor 8d via the switch 51d, but also the power supply line VBB2 is connected. A backflow prevention diode 63d is provided between the first conductor 8d and the power supply line VBB1. Furthermore, a backflow prevention diode 61d is provided between the first conductor 8d and the power supply line VBB2.

  The column selection circuit 5b is configured as shown in FIG. Not only the control line CL2 is connected to the second conductor 14c via the switch 151c, but also the control line CL1 is connected. A backflow preventing diode 163c is provided between the second conductor 14c and the control line CL2. Furthermore, a backflow prevention diode 161c is provided between the second conductor 14c and the control line CL1.

  With such a circuit configuration, the processing circuit 24 of FIG. 4 is driven even when the contact portion by the sphere 30 of FIG. 3 is merely moved to 12b when shaking occurs as shown in FIG. be able to. That is, when the sphere 30 of FIG. 3 moves to the position of the contact portion 12b, the power supply line VBB2 of FIG. 14, the backflow prevention diode 61d, the first conductor 8d, the second conductor 14c, the backflow prevention diode 161c, and the switch of FIG. The voltage of the battery power supply 2b is supplied to the control line CL2 through the path 151c and the backflow prevention diode 163c. The voltage of the control line CL2 is supplied to the OR circuit 49 through the isolation amplifier 47. As a result, the main switch control line CL connected to the output of the OR circuit 49 becomes "H" to drive the processing circuit 24 of FIG.

  In the circuit of FIG. 13, isolation amplifiers 45 and 47 are provided between the OR circuit 49 connected to the main switch control line CL and the control lines CL1 and CL2. As a result, the power supply system of the power supply line VBB1 and the ground line VSS1 by the battery power supply 2a and the power supply system of the power supply line VBB2 and the ground line VSS2 by the battery power supply 2b become independent power supply systems. Note that either the battery power supply 2 a or the battery power supply 2 b may be connected to the processing circuit of FIG. 4 via the main switch circuit 22. Alternatively, another battery power supply different from the battery power supplies 2a and 2b may be connected.

  The operation of the current detection circuit 158c of FIG. 15 is similar to that of the current detection circuit 58d of FIG.

  In the circuit shown in FIG. 13, when the flow chart of FIG. 8 is executed, in step S5, not only switches 51a to 51g (see FIG. 14) of each set in column select circuit 5a but also each set in column select circuit 5b Switches 151a-151g (see FIG. 15) are also turned on. In addition, when step S8 is executed, the selection line MS of the target set in both of the column selection circuits 5a and 5b is set to "H" for a predetermined time. Thereby, the current can be detected in the group in contact with the spheres 30 of FIG. 3.

(4) In the said embodiment, as shown in FIG. 1, the 1st conductor 8 and the 2nd conductor 14 are arrange | positioned in row form. However, the first conductors 8 may be vertically disposed and the second conductors 14 may be laterally disposed in a lattice. In this case, the overlapping portion may be prevented from conducting through the insulating layer. By arranging in a grid shape in this way, it is possible to detect with high accuracy even in the sway in any direction.

  Alternatively, part of the first conductor 8 and the second conductor 14 may be vertically disposed, and the remaining portion may be laterally disposed. For example, as shown in FIG. 16, the first conductors 8a, 8b, 8c are vertically disposed, and the second conductors 14a, 14b are disposed therebetween, and the first conductors 8p, 8q, 8r are horizontally disposed. The second conductors 14p and 14q are disposed between them. In the example of FIG. 16, the switch 51b of FIG. 5 connected to the conductor 8b in contact with the sphere 30 of FIG. 3 at the contact portion 12 among the first conductors 8a, 8b and 8c arranged vertically is turned off I have to. The switches 51a and 51c of FIG. 5 connected to the other vertically arranged first conductors 8a and 8c are turned on.

  Further, among the first conductors 8p, 8q, 8r arranged laterally, the switch 51q of FIG. 5 connected to the conductor 8q contacting the sphere 30 of FIG. 3 at the contact portion 12 is turned off. The switches 51p and 51r of FIG. 5 connected to the other laterally arranged first conductors 8p and 8r are turned on.

  With the arrangement as shown in FIG. 16, detection can be performed with high sensitivity not only in the lateral direction but also in the vertical direction.

  Note that, as shown in FIG. 16, where the first conductors 8a, 8b, 8c and the second conductors 14a and 14b and the first conductors 8p, 8q and 8r and the second conductors 14p and 14q intersect, The width of the conductor is narrowed. In addition, in order to prevent conduction between parts where there is a tolerance, the insulation layers are sandwiched and crossed.

  In the example of FIG. 16, a part of the first conductor 8 and the second conductor 14 and the remaining part are arranged in the longitudinal direction and the lateral direction at an angle of 90 degrees. However, the extension direction of a part of the first conductor 8 and the second conductor 14 may be different from the extension direction of the remaining part (for example, at 45 degrees or the like).

(5) In the said embodiment, the spherical body 30 shown to FIG. 2A is comprised with solid metals, such as iron and copper. However, the sphere 30 may be configured by plating the surface of a plastic or the like with gold or the like. Also, liquid metal such as mercury may be used.

(6) In the above embodiment, the sphere 30 is used. However, in a case where it is desired to detect a shake in one direction intensively, as shown in FIG. 17, a cylindrical body 31 may be used. In this case, the first conductors 8 and the second conductors 14 may be alternately arranged in the same manner as in FIG. 1, but as shown in FIG. The first conductor 8 may be provided intermittently in the rotational direction of the cylindrical body 31.

(7) In the above embodiment, as shown in FIG. 2B, the first conductor 8 and the second conductor 14 are electrically connected by the spherical body 30 which is a conductor. However, the structure may be made such that the weight of the sphere 30 brings the first conductor 8 and the second conductor 14 (arranged to intersect) in the lower part thereof into contact with each other for conduction. In this case, the spheres 30 need not be conductors.

(8) In the above embodiment, as shown in FIG. 7, the processing circuit 24 of FIG. 4 analyzes the vibration waveform and transmits the analysis result. However, the vibration waveform data itself may be transmitted.

  Further, the acceleration sensor 68 shown in FIG. 6 may not be provided, and the processing circuit 24 activated by shaking may transmit its own ID. The base station having received this may notify a mobile phone or the like linked to the ID. Alternatively, the notification may be made from the processing circuit 24 by voice or light. In this way, if the device is attached to a bicycle, art, outdoor materials, classified documents, etc., theft etc. can be notified.

  Furthermore, the processing circuit 42 controls the processing for moving the head away from the disk before falling to the floor by providing the present apparatus to a hard disk etc. and detecting the acceleration when falling from the desk, etc. May be prevented from being destroyed.

(9) In the above embodiment, as shown in FIG. 2B, the concave portion 32 of the base member 28 holds the sphere 30 as the movable body so as to be able to swing. However, the movable body may be held by an elastic member such as a spring. Alternatively, they may be held by magnetic force or the like. In these cases, the shape of the moving body does not have to be spherical.

(10) The above-mentioned modifications can be applied in combination with each other as long as the essentials thereof are not violated. Moreover, the said modification is applicable combining with 2nd embodiment and its modification.

2. Second Embodiment 2.1 Outline of Device FIG. 18 shows an entire configuration of a shake detection and drive device according to a second embodiment. In the present embodiment, the first conductor 8 and the second conductor 14 are not provided at the stop position of the sphere 30. In the present embodiment, as shown in FIG. 19, a central recess 33 having a shape along the outer shape of the sphere 30 is provided at the central portion of the recess 32 of the base member 28. Thus, it is ensured that the sphere 30 returns to this central recess 33 after the sphere 30 has moved due to shaking. Therefore, in the present embodiment, it is not necessary to provide the column selection circuit 5. 19A is a plan view, and FIG. 19B is a cross-sectional view.

2.2 Vibration Informing Device The sectional view in the case of using the vibration detecting and driving device as a vibration informing device is the same as FIG. 3. However, as described above, the shape of the recess 32 of the base member 28 is different, and the column selection circuit 5 is not provided.

  FIG. 20 shows a circuit diagram. The column selection circuit 5 is not provided. Also, corresponding to this, a switch 50 for current measurement and a control line CMM are not provided.

After executing step S4 of FIG. 7, the control program 74 shown in FIG. 6 does not execute steps S6 to S10, executes step S11, and ends.

2.3 Other
(1) In the above embodiment, as shown in FIG. 21A, the first conductor 8 and the second conductor 14 are not provided in the row of the contact portions 12 of the spherical body 30. However, as shown in FIG. 21B, in the vicinity of the contact portion 12 of the sphere 30, the first conductor 8 and the second The conductor 14 may be provided. As a result, even when the sphere 30 moves in the vertical direction in the figure, this can be reliably detected.

(2) The above modification is applicable in combination with the first embodiment and the modification thereof as long as it does not contradict the essence.

Claims (11)

A moving body that moves in response to shaking
A holding member that holds the movable body in a pivotable manner;
A first conductor and a second conductor that are not conductive when the movable body is in the stop position, and are conductive with each other by movement of the movable body;
A battery power supply connected to the first conductor;
A main switch circuit that supplies a power supply voltage from the battery power supply to a processing circuit that performs predetermined processing when the potential of the second conductor exceeds a predetermined potential;
The processing circuit driven by receiving the power supply voltage;
A sway detection driving device provided with
The holding member has a recess for swingably holding the movable body,
The first conductor and the second conductor are provided where the first conductor and the second conductor do not conduct each other by the mobile body when the mobile body is in the stop position of the recess. A sway detection driving device characterized in that   The holding member has a central recess having a shape corresponding to a part of the outer shape of the movable body at the center of the bottom of the recess so as to return to the stop position after the movable body moves due to the swing. The shake detection drive device according to claim 1. A moving body that moves in response to shaking
A holding member that holds the movable body in a pivotable manner;
A power supply line and a main switch control line which are not conducted when the movable bodies are in the stop position, and are mutually conducted by movement of the movable bodies;
A battery power supply connected to the power supply line ;
A main switch circuit for supplying a power supply voltage from the battery power supply to a processing circuit which performs predetermined processing when the potential of the main switch control line exceeds a predetermined potential;
The processing circuit driven by receiving the power supply voltage;
A sway detection driving device provided with
The holding member has a recess for swingably holding the movable body,
A plurality of sets of first conductors connected to the power supply line and second conductors connected to the main switch control line are provided alternately on the surface of the recess at intervals.
The battery power supply, the power supply line, a combination of the first conductor and the second conductor, the main switch control line, the second conductor connected to the main switch control line, and the main switch circuit are connected in series A selection switch is provided anywhere from the battery power supply to the main switch circuit,
The processing circuit is driven by conduction of the set of the first conductor and the second conductor due to the movement of the movable body, and after the predetermined processing is completed, the first conductor and the second are processed. Driving a conduction determination circuit which determines whether each set of conductors is conductive or not, and turns off the selection switch of the conductive first and second conductors. A shake detection drive device characterized by The moving body is spherical and at least the surface is a conductor,
The shake detection according to any one of claims 1 to 3, wherein a plurality of sets of the first conductor and the second conductor are provided alternately at intervals on the surface of the recess. Drive device. A portion of the first conductor and the second conductor is arranged to extend in a first direction,
The remainder of the first conductor and the second conductor may extend in a direction different from the first direction to intersect the portion of the first conductor and the second conductor. 5. The shake detection and drive apparatus according to claim 4, wherein the shake detection and drive apparatus is disposed.   5. The apparatus according to claim 4, wherein the first conductor and the second conductor are formed in a zigzag shape, a wave shape or a concentric circle shape.   The said movement body is cylindrical shape, Comprising: The surface is a conductor at least, The rocking | fluctuation detection drive device in any one of the Claims 1-3 characterized by the above-mentioned. The main switch circuit is
A field effect transistor whose drain and source are connected between the processing circuit and the battery power source;
A flip flop in which the second conductor is connected to an input and a gate of the field effect transistor is connected to an output;
The sway detecting drive device according to any one of claims 1 to 7, comprising:   The shake detection drive apparatus according to any one of claims 1 to 8, wherein the processing circuit includes a vibration sensor and a transmission circuit that transmits a processing result based on the detected vibration. And a housing accommodating the processing circuit, the movable body, the holding member, the first conductor and the second conductor, the battery power supply, and the processing circuit.
The shake detection drive apparatus according to any one of claims 1 to 9, wherein a weight member is provided on the case so that the movable body is held in the recess of the holding member. . A moving body that moves in response to shaking
A holding member having a recess for holding the movable body in a pivotable manner;
A plurality of sets of first conductors and a second conductor alternately arranged at intervals on the surface of the recess;
A first battery power supply whose positive potential side is connected to the first conductor via a first selection switch;
A second battery power supply whose positive potential side is connected to the first conductor via a first backflow prevention element;
A first control line connected to the second conductor via a second backflow prevention element;
A second control line connected to the second conductor via a second selection switch;
A first isolation amplifier having an input connected to the first control line and a ground connected to the ground side of the first battery power supply;
A second isolation amplifier having an input connected to the second control line and a ground connected to the ground side of the second battery power supply;
A main switch circuit for supplying a power supply voltage to a processing circuit that performs predetermined processing when the potential of at least one of the output of the first isolation amplifier and the output of the second isolation amplifier exceeds a predetermined potential. ,
A processing circuit that receives and drives the power supply voltage;
A sway detection driving device provided with
Turning off the first selection switch and the second selection switch for the first conductor and the second conductor conducted by the mobile body when the mobile body is in the stop position; A shake detection and drive apparatus, characterized in that it is configured to turn on a selection switch.