Input reception device, input reception method, and input reception program

Abstract

To provide an input receiving device, an input receiving method, and an input receiving program capable of adjusting threshold values for touch determination with a simple mechanical configuration in use of an electrostatic sensor as an input device.SOLUTION: An input receiving device includes: operation receiving means for receiving an operation of an operator's touch when a detected value of a capacitance detected by an electrostatic sensor is equal to or greater than a first threshold; touch determination means for determining, when a state in which the detected value of the capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first time period, that the operator has touched; and setting means for setting, when the touch determination means determines that the operator has touched, the first threshold value to a value equal to or higher than the second threshold value on the basis of the detection value detected by the electrostatic sensor.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an input reception device, an input reception method, and an input reception program. [Background technology]

[0002] Conventionally, there is known an electrostatic switch that has an electrostatic sensor provided on an operation surface and accepts an input operation by an operator based on the electrostatic capacitance detected by the electrostatic sensor. The detection value of the electrostatic sensor increases when the operator's finger or the like approaches or touches the operation surface. The electrostatic switch determines that the operator has touched the operation surface when the detected electrostatic capacitance exceeds a predetermined threshold.

[0003] However, the detected capacitance differs depending on whether the operator is wearing gloves, individual differences, and the condition of the fingertips. Therefore, if the presence or absence of contact by the operator is determined using a fixed threshold, there is a risk that an accurate determination cannot be made. For example, the detection value when the operator is wearing gloves will be lower than the detection value when the operator is barehanded. If a predetermined threshold is set according to the case where gloves are worn, there is a risk that in the case of bare hands, contact will be determined to have occurred simply by proximity. On the other hand, if a predetermined threshold is set so that contact can be determined only in the case of bare hands, it cannot be determined that a contact operation has been performed when a contact operation is performed while wearing gloves.

[0004] In response to this, Patent Document 1 discloses an input device that adjusts the threshold for determining whether an operator makes a contact. Specifically, an electrostatic sensor is provided on the surface or base of a mechanical switch, and the threshold for determining whether the electrostatic sensor makes a contact is adjusted based on the detection value of the electrostatic capacitance detected when the operation of the mechanical switch is detected. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-167868 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the input device described in Patent Document 1, the adjustment of the contact determination threshold of the electrostatic sensor starts when the operator presses the mechanical switch, so the threshold cannot be changed unless the mechanical switch is pressed. Therefore, even if the operator wants to input by a contact operation, the input device may not accept the contact operation until the operator presses the mechanical switch.

[0007] An object of the present invention is to make it possible to adjust the threshold value for contact determination when using an electrostatic sensor as an input device, without having to press a mechanical switch. [Means for solving the problem]

[0008] The input reception control device of claim 1 comprises an operation reception means for receiving an operation by contact from an operator when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value, a contact determination means for determining that the touch has been made by the operator when a state in which the detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a second threshold value continues for a first hour, and a setting means for setting the first threshold value to a value equal to or greater than the second threshold value based on the detection value detected by the electrostatic sensor when the contact determination means determines that the touch has been made by the operator.

[0009] In the input reception control device according to claim 2, the setting means sets the first threshold value based on an average value of detection values ​​detected by the electrostatic sensor during a first period of time when the contact determination means determines that the operator has made contact.

[0010] In the input reception control device of claim 3, the setting means sets one of two or more candidate thresholds as a first threshold, and sets as the first threshold a candidate threshold that is smaller than the detection value detected by the electrostatic sensor and is closer to the detection value among the two or more candidate thresholds.

[0011] In the input reception control device of claim 4, the setting means sets a candidate threshold smaller than the detection value and closer to the detection value among the two or more candidate thresholds as a first threshold when the detection value detected by the electrostatic sensor is larger than the smallest candidate threshold among the two or more candidate thresholds, and sets the smallest candidate threshold as the first threshold when the detection value is equal to or smaller than the smallest candidate threshold among the two or more candidate thresholds.

[0012] The input reception control device of claim 5 is an in-vehicle device that transitions from a stopped state to an operating state when the vehicle transitions from a first state to a second state, and when the input reception control device transitions from the stopped state to the operating state, the setting means sets the first threshold to an initial value regardless of the setting of the first threshold in the previous operating state.

[0013] In the input reception control device of claim 6, the setting means does not set the first threshold value until a second time has elapsed since the first threshold value was set, even if the contact determination means determines that the touch has been made by the operator, and resets the first threshold value when the contact determination means determines that the touch has been made by the operator after the second time or more has elapsed.

[0014] In the input reception control device according to claim 7, the control device is provided on a steering wheel of the vehicle, and the second time period is changed based on a running state of the vehicle.

[0015] Another aspect of the present invention is an input reception method according to claim 8. The input reception method includes a contact determination step of determining whether or not an operator has made a contact based on a detection value of electrostatic capacitance detected by an electrostatic sensor, a setting step of setting a first threshold based on the detection value detected by the electrostatic sensor when it is determined in the contact determination step that an operator has made a contact, and an operation reception step of accepting an operation by contact by the operator when the detection value detected by the electrostatic sensor is equal to or greater than the first threshold set by the setting means. It is.

[0016] Another aspect of the present invention is an input reception program according to claim 9. The input reception program causes an information processing device to execute a contact determination step of determining whether or not an operator has contacted the input terminal based on a detection value of electrostatic capacitance detected by an electrostatic sensor, a setting step of setting a first threshold value based on the detection value detected by the electrostatic sensor when it is determined in the contact determination step that an operator has contacted the input terminal, and an operation reception step of accepting an operation by contact by the operator when the detection value detected by the electrostatic sensor is equal to or greater than the first threshold value set by the setting means. Effect of the Invention

[0017] As described above, according to the input reception device, the input reception method, and the input reception program of the present invention, the threshold value for contact determination when using an electrostatic sensor as an input device can be adjusted with a simple mechanical configuration. [Brief description of the drawings]

[0018] [Figure 1] FIG. 2 is a block diagram showing an example of a hardware configuration of an in-vehicle device group according to the embodiment. [Diagram 2] 1 is a block diagram showing a functional configuration of an input reception device according to an embodiment; [Diagram 3] 6 is a graph showing an example of a change over time in a detection value detected by the electrostatic sensor according to the embodiment. [Figure 4] 10 is a flowchart showing an example of a flow of a setting process by the input reception device according to the embodiment. [Diagram 5] 10 is a flowchart showing an example of a flow of a reception process by the input reception device according to the embodiment. [Figure 6] 11 is a table showing an example of a correspondence relationship between a detection value by the input reception device according to the embodiment and a first threshold value. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, specific embodiments of the present disclosure will be described with reference to the drawings. The arrangement of components and the like described in the present embodiments are not intended to limit the technical scope of the invention unless otherwise specified.

[0020] <Example> The present disclosure will be described by taking as an example a case where the present disclosure is applied to an electrostatic switch 2000 provided on a steering wheel of a vehicle. The electrostatic switch 2000 is attached to any position where a driver (operator) can operate it, such as a spoke part of the steering wheel. The present disclosure can also be applied to an input receiving device using an electrostatic sensor other than the steering wheel of a vehicle.

[0021] 1 is a block diagram showing an example of a hardware configuration of an in-vehicle device group according to an embodiment. The vehicle includes an in-vehicle device group in which an ECU 1000 and an electrostatic switch 2000 that realize the configuration of an input receiving device 100, and control target devices including a plurality of ECUs 301 to 303 are communicatively connected via a communication path.

[0022] The ECU 1000 of the input reception device 100 includes, for example, a central processing unit (CPU) 1002, a random access memory (RAM) 1004, a read only memory (ROM) 1005, a storage medium such as a hard disk drive (HDD) 1003, a timer (not shown), and an interface (I / F) 1001. These are connected to a communication interface such as a controller area network (CAN) driver via a bus. The ECU 1000 may be provided near the electrostatic sensor 201 or may be provided separately from the electrostatic sensor 201. The ECU 1000 is configured to be able to acquire the electrostatic capacitance detected by the electrostatic sensor 201. The ECU 1000 transmits a control signal to the controlled device 300 based on the detection value of the electrostatic capacitance acquired from the electrostatic sensor 201.

[0023] The electrostatic sensor 201 detects electrostatic capacitance and outputs the detection value to the ECU 1000. The structure of the electrostatic sensor 201 is well known, so detailed description will be omitted. The electrostatic capacitance detection surface of the electrostatic sensor 201 is covered with a cover member 202 and provided on the operation surface of the electrostatic switch 2000. The detection value of the electrostatic capacitance increases when a human finger or the like comes into contact with or approaches the detection surface. The electrostatic sensor 201 may detect the distribution of electrostatic capacitance on the detection surface or a change in the distribution over time. This makes it possible to detect touch operations, tracing operations, and the like, of multiple fingers.

[0024] The ECU 1000 determines whether an operational input has been made to the electrostatic switch 2000 based on a detection value input from the electrostatic sensor 201. The ECU 1000 of the input reception device 100 outputs a control signal corresponding to the operational input to the electrostatic switch 2000 to the controlled device 300.

[0025] The controlled device 300 acquires a control signal from the input receiving device 100 and executes control based on the acquired control signal. Examples of the controlled device 300 mounted on a vehicle include an ECU 301 that realizes the function of an air conditioner, an ECU 302 that realizes the function of an audio device, an ECU 303 that realizes the function of a navigation device, and an ECU 304 that realizes the function of other devices. When a touch operation is performed on the operation surface of the electrostatic switch 1, the controlled device 300 is controlled assuming that, for example, a "decision" operation has been input. Also, when a tracing operation is performed on the operation surface of the electrostatic switch 1, the controlled device 300 may be controlled assuming that a scroll operation, a function selection, an operation to raise or lower the volume or the set room temperature, or the like has been input.

[0026] The functional configuration of the input reception device 100 in this embodiment will be described with reference to Fig. 2. Each functional configuration is realized by the CPU 1002 executing programs stored in the storage media 1003 to 1005. The input reception device 100 includes, as functional blocks, a capacitance acquisition unit 11, a power state transition unit 12, a contact determination unit 13, a setting unit 14, and an operation reception unit 15.

[0027] The capacitance acquisition unit 11 is configured to be able to acquire a detection value detected by the electrostatic sensor 201 and output the same to the contact determination unit and the operation acceptance unit.

[0028] The power supply state transition unit 12 transitions the power supply state of the input reception control device between a stopped state and an operating state based on the vehicle state. When the vehicle state changes from a first state to a second state, the power supply state transition unit 12 transitions the power supply state of the input reception control device from the stopped state to the operating state. The first state is, for example, a state in which the power state of the vehicle is stopped and no passenger is on board. The second state is, for example, a state in which the power state of the vehicle is stopped and a passenger is on board. The power supply state transition unit 12 transitions from the stopped state to the operating state when notified by another control device (not shown) that the vehicle state has transitioned from the first state to the second state. Alternatively, when the vehicle state transitions from the first state to the second state, a power supply device (not shown) may start supplying power to the input reception control device, causing the power supply state transition unit 12 to transition from the stopped state to the operating state. Here, the above example has been described as a definition of the first state and the second state, but the first state may be a state in which the vehicle's power plant is stopped, and the second state may be a state in which the vehicle's power plant is operating.

[0029] The operation reception unit 15 receives an operation by touch of an operator based on the detection value of the capacitance acquired by the capacitance acquisition unit 11 (hereinafter, referred to as reception processing). The operation reception unit 15 receives an operation input by touch of an operator when the detection value is equal to or greater than a first threshold Z1 set in advance by the setting unit 14. When the operation reception unit 15 receives an operation, a control signal corresponding to the operation input is output by an output unit (not shown) to the controlled device 300 that is the object of operation.

[0030] The contact determination unit 13 determines whether the electrostatic sensor 201 has been touched by the operator based on the detection value of the electrostatic capacitance detected by the electrostatic sensor 201. As an example, the contact determination unit 13 determines that the electrostatic sensor 201 has been touched by the operator when the state in which the detection value detected by the electrostatic sensor 201 is equal to or greater than the second threshold value Z2 continues for a first time t1. The second threshold value is set to a value greater than the electrostatic capacitance detected even when a human finger or the like is not touching the electrostatic sensor 201, and specifically, a value of the order of 1 pF or less is set. When the electrostatic switch 1 is provided on the steering wheel of a vehicle as in this embodiment, the electrostatic sensor 201 detects the electrostatic capacitance due to noise generated by an in-vehicle device. By setting the second threshold value Z2 to the value described above, it is possible to reduce the risk of erroneously determining that the electrostatic sensor 201 has been touched due to noise. The second threshold value Z2 is set to a value that can be detected even when the operator is wearing gloves, for example. As a result, it is possible to determine that the electrostatic sensor 201 has been touched even when the operator is wearing gloves, and it is possible to set the first threshold value Z1 described later. The second threshold value Z2 may be set to the same value as Yn described later. The first time t1 is, for example, 100 ms.

[0031] When the contact determination unit 13 determines that the operator has made contact, the setting unit 14 sets a first threshold value Z1 based on the detection value X detected by the electrostatic sensor (hereinafter, referred to as a setting process). The detection value X may be the average value of the detection values ​​detected by the electrostatic sensor 201 during the first time period, or may be the maximum detection value during the first time period. The method of taking the detection value X may be freely selected within the feasible scope of the present disclosure.

[0032] FIG. 6 is a table showing an example of the correspondence between the detection value by the electrostatic sensor 201 and the first threshold value. As an example, the first threshold value Z1 is set by selecting one candidate threshold value from a group of two or more candidate threshold values ​​Y={Y1, Y2, ... Yn}. n is an integer of two or more. Among the candidate threshold values ​​Y1 to Yn, Y1 is the largest and Yn is the smallest. Each value of the candidate threshold values ​​Y1 to Yn may be set based on the capacitance detection amount when gloves are worn and the capacitance detection amount when gloves are not worn, for example, by an experiment. FIG. 6 shows the relationship between the detection value and the set first threshold value Z1. The setting unit 14 sets a candidate threshold value Ym that is smaller than the detection value X and is close to the detection value X among the group of candidate threshold values ​​Y as the first threshold value Z1. Note that m is an integer between 1 and n. This makes it possible to adjust the first threshold value so that it corresponds to the state of the operator's finger. It is possible to detect the operation by the operator regardless of whether the operator is wearing gloves, individual differences, and the state of the fingertip. For example, when the operator is wearing gloves, a relatively low value is acquired as the detection value X, and therefore the first threshold value is also set to match the detection value X. This makes it possible to detect the operation even when the electrostatic switch is operated while wearing gloves. On the other hand, when the operator is not wearing gloves, a relatively high value is acquired as the detection value X, and therefore the first threshold value is also set to match the detection value X.

[0033] When the detection value X is equal to or smaller than the smallest possible threshold value Yn in the group of possible threshold values ​​Y, the possible threshold value Yn is set as the first threshold value Z1. A value larger than the capacitance detected even when a human finger or the like is not touching the switch is set as Yn. When the electrostatic switch 1 is provided on the steering wheel of a vehicle as in this embodiment, the electrostatic sensor 201 detects the capacitance due to noise generated by the in-vehicle device. By setting the first threshold value to a threshold value at least equal to or larger than Yn, the risk of erroneously detecting an operation due to noise can be reduced.

[0034] When the power state of the input reception control device is transitioned from a stopped state to an operating state by the power state transition unit 12, the setting unit 14 may set an initial value regardless of the setting of the first threshold in the previous operating state. This allows the initial value to be set regardless of the setting of the first threshold in the previous operating state. For example, even if an occupant operates the electrostatic switch 2000 without wearing gloves in the previous operating state and the occupant operates the electrostatic switch 2000 while wearing gloves in the next operating state, the first threshold is set to the initial value, so that the possibility of detecting the operation of the electrostatic switch 2000 is improved. The initial value of the first threshold is preferably set to the candidate threshold Yn. Alternatively, a history of the first thresholds set by the setting unit 14 in the past may be stored, and a candidate threshold that is frequently set as the first threshold may be set as the first threshold.

[0035] In the above description, the timing when the setting unit 14 starts the process (setting process) of setting the first threshold Z1 is when the contact determination unit 13 determines that the glove has been touched by the operator (this is the first condition). This allows the threshold to be updated even if the state of wearing the glove changes between the start and stop of the vehicle.

[0036] The setting process may be started in parallel with the operation reception process. The first threshold value set by one touch may be the first threshold value for the operation reception process at the next touch. There is no need to perform a touch operation again after setting the threshold value, which reduces the inconvenience.

[0037] The timing for starting the setting process may be determined by combining other conditions in addition to the first condition. An example of a condition for starting the setting process by the setting unit 14 will be described below.

[0038] (First example of start condition) In the first example of the start condition, in addition to the above-mentioned first condition, the start condition of the setting process is that the input reception control device has transitioned from a stopped state to an operating state. That is, the setting unit starts the setting process when the first condition is met and the input reception control device has transitioned from a stopped state to an operating state. As a result, the first threshold value Z1 can be updated only once from when the input reception device is started to when it is stopped. As described above, the stop state and the operating state and the transition of the input reception control device are related to the power state of the vehicle and the riding state of the occupant. In other words, in the first example of the start condition, the setting process is started when the above-mentioned first condition is met, the power state of the vehicle is stopped, and the occupant gets in from a state in which no occupant is in the vehicle. That is, the first threshold value Z1 can be updated only once from when the occupant gets in to when they get out of the vehicle. As a result, while reducing the inconvenience of updating the first threshold value Z1 every time the electrostatic switch is touched, the first threshold value Z1 can be updated even when the operator changes to a different person or when the wearing state of the gloves changes.

[0039] (Second example of start condition) Another example of the start condition of the setting process by the setting unit 14 will be described. In the second example of the start condition, in addition to the above-mentioned first condition, the start condition of the setting process is that a second time has elapsed since the previous setting process. This causes the first threshold Z1 to be updated at least every second time. While reducing the inconvenience of updating the threshold every time the electrostatic switch is touched, the first threshold Z1 can also be updated when gloves are removed while the vehicle is traveling.

[0040] The second time may be changed depending on the driving state of the vehicle. As an example, the second time is made longer when the vehicle turns right or left at an intersection. While the vehicle is turning right or left at an intersection, the possibility that the occupant puts on or takes off gloves is low, and the need to change the first threshold value Z1 is low. On the other hand, there is a high possibility that the finger will touch the electrostatic switch 2000 for steering. In such a case, by making the second time longer, it is possible to reduce unnecessary execution of the setting process of the first threshold value Z1. Although turning right or left is given as an example of a driving state, the second time can be changed depending on various driving states such as when the vehicle is stopped or when driving on a curve.

[0041] The processing of the input reception device 100 according to the present disclosure includes a setting process and a reception process. First, the setting process will be described with reference to FIG. 3 and FIG. 4. FIG. 3 is a graph showing an example of (a) a time change of a detection value by the electrostatic sensor 201, (b) a time change of a determination by the contact determination unit 13, and (c) a time change of a first threshold value Z1 set by the setting unit 14 according to the embodiment. FIG. 4 is a flowchart showing an example of a flow of a setting process by the input reception device 100 according to the embodiment. The first threshold value Z1 is adjusted by executing the reception process and the setting process shown in FIG. This setting process is a control that is repeatedly executed at a predetermined interval by executing a predetermined control program in the ECU 1000. This process is started by starting the vehicle, as an example.

[0042] As shown in FIG. 4, when a series of processes starts, in S101, the setting unit 14 sets the first threshold Z1 to Yn.

[0043] Next, the process proceeds to a setting process. In the setting process, in S102, the capacitance acquisition unit 11 acquires a detection value of the capacitance from the electrostatic sensor 201. In S103, the contact determination unit 13 determines whether or not the operator has made a contact based on the acquired detection value. As an example, the contact determination unit 13 determines whether the detection value is equal to or greater than the time t1 and equal to or greater than the second threshold value Z2, and determines that the contact has been made if the result is affirmative. If it is determined that the contact has been made in S103, the process proceeds to S104. In S104, the setting unit 14 sets the first threshold value Z1. If it is not determined that the contact has been made in S103, the setting process ends.

[0044] This control ends, for example, when the operating state of the vehicle's power is stopped (Yes in S105).

[0045] An example of (a) time change of the detection value by the electrostatic sensor 201, (b) time change of the determination by the contact determination unit 13, and (c) time change ss of the first threshold value Z1 set by the setting unit 14, which are obtained by applying the flowchart of Fig. 4, will be described with reference to Fig. 3. In Fig. 3, the time when the vehicle is started is set to 0.

[0046] As shown in Fig. 3(c), at time t0, the first threshold Z1 is Yn. Then, at time ta, the capacitance detected by the electrostatic sensor 201 increases and becomes equal to or greater than Yn, as shown in Fig. 3. Since the first threshold Z1 is Yn, the operation reception unit receives an input operation to the electrostatic sensor 201, and outputs a control signal to the control target device 300 in response to the operation.

[0047] In this embodiment, the second threshold Z2 used by the contact determination unit 13 to determine whether or not contact has occurred is set to Yn. When a time t1 has elapsed since the detection value became equal to or greater than Yn (=the second threshold Z2), the contact determination unit 13 determines that contact has occurred, as shown in FIG. 3(b). As a result, the setting unit 14 sets the first threshold Z1 based on the detection value. In this embodiment, since the detection value is smaller than the possible threshold Y1 and larger than the possible threshold Y2, the first threshold Z1 is set to Y2. As a result, the first threshold Z1 for accepting an operation input to the electrostatic switch 2000 can be adjusted to an appropriate value.

[0048] The reception process will be described with reference to Fig. 5. Fig. 5 is a flowchart showing an example of the flow of the reception process by the input reception device 100 according to the embodiment. The reception process shown in Fig. 5 is executed to receive an input operation by an operator. This reception process is a control that is repeatedly executed at predetermined intervals by the ECU 1000 executing a predetermined control program. This process is started, for example, when the vehicle is started.

[0049] 5, when a series of processes starts, the setting unit 14 sets a first threshold Z1 in S201. Before the above-mentioned setting process is performed, the setting unit 14 sets the first threshold Z1 to Yn. When the setting process is performed, the setting unit 14 sets the first threshold Z1 based on the detection value detected by the electrostatic sensor 201.

[0050] Next, the process proceeds to reception processing. In S202, the capacitance acquisition unit 11 acquires a detection value of the capacitance from the electrostatic sensor 201. The acquired detection value is output to the contact determination unit 13 and the operation reception unit 15. In the reception processing, in S203, the operation reception unit 15 determines whether the detection value is equal to or greater than the first threshold value Z1. If the detection value is equal to or greater than the first threshold value Z1 (Yes in S203), in S204, the operation reception unit 15 accepts the operation and outputs a signal to the control target device 300 in response to the input operation. If the detection value is not equal to or greater than Z1, the reception processing ends without accepting the operation.

[0051] Although the setting process and the reception process are described separately, the reception process may be performed before the setting process or simultaneously. Also, although the acquisition steps by the capacitance acquisition unit are described as different from S102 and S202, the same detection value of the capacitance may be used.

[0052] The above-described embodiment is merely an example, and is not intended to exclude various modifications or application of techniques not explicitly described in the embodiment. Each configuration of the present embodiment can be modified in various ways without departing from the spirit of the embodiment, and can be selected or combined as necessary. [Explanation of symbols]

[0053] 100 Input reception device 201 Electrostatic Sensor 300 Controlled Equipment 2000 Capacitive Switch

Claims

1. an operation receiving means for receiving an operation by an operator's contact when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value; a contact determination means for determining that the electrostatic capacitance has been touched by the operator when a state in which a detection value of the electrostatic capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first period of time; a setting means for setting the first threshold value to a value equal to or greater than the second threshold value based on a detection value detected by the electrostatic sensor when the contact determination means determines that the operator has made contact with the electrostatic sensor; Equipped with the setting means sets one possible threshold from two or more possible thresholds as the first threshold; setting, as the first threshold, a possible threshold that is smaller than the detection value detected by the electrostatic sensor and is closer to the detection value among the two or more possible thresholds; Input acceptance device.

2. when the detection value detected by the electrostatic sensor is greater than the smallest possible threshold among the two or more possible thresholds, the setting means sets, as the first threshold, a possible threshold that is smaller than the detection value and is closest to the detection value among the two or more possible thresholds; When the detection value is equal to or smaller than a smallest possible threshold among the two or more possible thresholds, the smallest possible threshold is set as the first threshold. The input receiving device according to claim 1 .

3. an operation receiving means for receiving an operation by an operator's contact when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value; a contact determination means for determining that the electrostatic capacitance has been touched by the operator when a state in which a detection value of the electrostatic capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first period of time; a setting means for setting the first threshold value to a value equal to or greater than the second threshold value based on a detection value detected by the electrostatic sensor when the contact determination means determines that the operator has made contact with the electrostatic sensor; Equipped with The setting means does not set the first threshold value until a second time has elapsed since the setting of the first threshold value, even if the contact determination means determines that the touch has been made by the operator, and resets the first threshold value when the contact determination means determines that the touch has been made by the operator after the second time or more has elapsed. Input acceptance device.

4. The electrostatic sensor is provided on a steering wheel of a vehicle, The input receiving device according to claim 3 , wherein the second time period is changed based on a running state of the vehicle.

5. an operation receiving means for receiving an operation by an operator's contact when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value; a contact determination means for determining that the electrostatic capacitance has been touched by the operator when a state in which a detection value of the electrostatic capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first period of time; a setting means for setting the first threshold value to a value larger than the second threshold value based on a detection value detected by the electrostatic sensor when the contact determination means determines that the operator has contacted the electrostatic sensor; An input receiving device comprising:

6. the setting means sets the first threshold value based on an average value of detection values ​​detected by the electrostatic sensor during the first time period when the contact determination means determines that the electrostatic sensor has been contacted by the operator. The input receiving device according to any one of claims 1 to 5.

7. The input reception device is an in-vehicle device that transitions from a stopped state to an operating state when the vehicle transitions from a state other than the first state to the first state, and the setting means sets the first threshold to an initial value when the input reception device transitions from the stopped state to the operating state, regardless of the setting of the first threshold in the previous operating state.The input reception device according to any one of claims 1 to 6.

8. An operation receiving step of receiving an operation by an operator's contact when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value; a contact determination step of determining that the electrostatic capacitance has been touched by the operator when a state in which a detection value of the electrostatic capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first period of time; a setting step of setting the first threshold value to a value equal to or greater than the second threshold value based on a detection value detected by the electrostatic sensor when it is determined in the contact determination step that the operator has contacted the electrostatic sensor; Equipped with In the setting step, one possible threshold is set as the first threshold from among two or more possible thresholds, and a possible threshold that is smaller than a detection value detected by the electrostatic sensor and is closer to the detection value from among the two or more possible thresholds is set as the first threshold. Input acceptance method.

9. An operation receiving step of receiving an operation by an operator's contact when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value; a contact determination step of determining that the electrostatic capacitance has been touched by the operator when a state in which a detection value of the electrostatic capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first period of time; a setting step of setting the first threshold value to a value equal to or greater than the second threshold value based on a detection value detected by the electrostatic sensor when it is determined in the contact determination step that the operator has contacted the electrostatic sensor; Equipped with In the setting step, the first threshold is not set until a second time has elapsed since the setting of the first threshold, even if it is determined in the contact determination step that the touch has been made by the operator, and the first threshold is set again when it is determined in the contact determination step that the touch has been made by the operator after the second time or more has elapsed. Input acceptance method.

10. An operation receiving step of receiving an operation by an operator's contact when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value; a contact determination step of determining that the electrostatic capacitance has been touched by the operator when a state in which a detection value of the electrostatic capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first period of time; a setting step of setting the first threshold value to a value larger than the second threshold value based on a detection value detected by the electrostatic sensor when it is determined in the contact determination step that the operator has contacted the electrostatic sensor; An input receiving method comprising:

11. An operation receiving step of receiving an operation by an operator's contact when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value; a contact determination step of determining that the electrostatic capacitance has been touched by the operator when a state in which a detection value of the electrostatic capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first period of time; a setting step of setting the first threshold value to a value equal to or greater than the second threshold value based on a detection value detected by the electrostatic sensor when it is determined in the contact determination step that the operator has contacted the electrostatic sensor; An input reception program for causing an information processing device to execute the following: In the setting step, the information processing device is caused to set one of two or more possible thresholds as the first threshold, and to set a possible threshold that is smaller than a detection value detected by the electrostatic sensor and is closer to the detection value among the two or more possible thresholds as the first threshold. Input acceptance program.

12. An operation receiving step of receiving an operation by an operator's contact when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value; a contact determination step of determining that the electrostatic capacitance has been touched by the operator when a state in which a detection value of the electrostatic capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first period of time; a setting step of setting the first threshold value to a value equal to or greater than the second threshold value based on a detection value detected by the electrostatic sensor when it is determined in the contact determination step that the operator has contacted the electrostatic sensor; An input reception program for causing an information processing device to execute the following: In the setting step, the information processing device is caused not to set the first threshold value until a second time has elapsed since the setting of the first threshold value, even if it is determined in the contact determination step that the touch has been made by an operator, and is caused to reset the first threshold value when it is determined in the contact determination step that the touch has been made by the operator after the second time or more has elapsed. Input acceptance program.

13. An operation receiving step of receiving an operation by an operator's contact when a detection value of the capacitance detected by the electrostatic sensor is equal to or greater than a first threshold value; a contact determination step of determining that the electrostatic capacitance has been touched by the operator when a state in which a detection value of the electrostatic capacitance detected by the electrostatic sensor is equal to or greater than a second threshold continues for a first period of time; a setting step of setting the first threshold value to a value larger than the second threshold value based on a detection value detected by the electrostatic sensor when it is determined in the contact determination step that the operator has contacted the electrostatic sensor; An input receiving program that causes an information processing device to execute the above.

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