JP2005343386A - In-cabin temperature monitoring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an in-cabin temperature monitoring device capable of performing adequate notification and treatment by predicting an abnormality of the cabin temperature in advance. <P>SOLUTION: A temperature change prediction unit 11 predicts a change of sunshine quantity on a self vehicle based on time information, the direction of the self vehicle and map information output by a navigation device 2, the sunshine quantity output by a sunshine sensor 22 and presence/absence of an obstacle to be output by an external camera 25, and predicts the change in the cabin temperature with high accuracy by using the output of an outside temperature sensor 23 and an in-cabin temperature sensor 24. A user position detection unit 13 detects the position of a user based on the outputs of the external camera 25, a seat sensor 26, an ignition sensor 27 and a communication system 7, and a danger determination unit 12 determines occurrence of abnormal in-cabin temperature and possibility of occurrence of dangers in the vehicle from the outputs of the temperature change prediction unit 11 and the user position detection unit 13. A notification unit 15 selects the notification means to be used based on the outputs of the danger determination unit 12 and the user position detection unit 13 and performs the notification. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle room temperature monitoring apparatus that monitors the room temperature of a vehicle, and more particularly to a vehicle room temperature monitoring apparatus that predicts a temperature change of a vehicle with high accuracy and executes appropriate processing.

  Conventionally, a vehicle is equipped with an air conditioning system in order to keep the interior of the traveling vehicle at a comfortable room temperature. Further, in recent years, a technique has been devised for controlling the in-vehicle temperature even when an occupant, for example, a user is not in the vehicle.

  For example, Patent Document 1 enables the temperature inside the vehicle to be controlled while the user is away from the vehicle by enabling the electric air conditioner to be remotely operated by a telephone.

JP-A-8-149608

  In the conventional technology described above, the temperature of the passenger compartment can be arbitrarily controlled while the user is away from the vehicle. In addition, there may be an abnormality (extremely high temperature or extremely low temperature) in the room temperature of the passenger compartment while the user is away from the vehicle. Conventionally, a technique for monitoring the vehicle room temperature has been devised.

  Such technology, for example, not only improves the comfort when riding a user by detecting an abnormal rise in the vehicle room temperature in the summer and an abnormal drop in the winter, or automatically controlling the air conditioning, for example, This technique is also important for ensuring the safety of children when they leave the vehicle and the user leaves the vehicle.

  By the way, in the conventional technology, an abnormality in the vehicle room temperature is detected by monitoring the temperature in the passenger compartment. However, when an abnormality in the vehicle room temperature is detected, there is a possibility that an abnormality will occur before the occurrence of the abnormality. It is desirable to execute notification processing and air conditioning processing in a certain state.

  However, if the vehicle room temperature itself is measured as in the prior art and notification and countermeasures are taken before the occurrence of an abnormality, it will be detected early with sufficient room temperature to be detected, or the abnormal temperature will be detected from the change in room temperature. Will be predicted.

  However, the actual change in the vehicle room temperature depends on the situation around the vehicle, particularly the state of sunlight entering the vehicle, and does not change uniformly. For this reason, the conventional technology has a problem in that a change in the room temperature of the vehicle cannot be accurately predicted.

  The present invention has been made to solve the above-described problems in the prior art, and provides a passenger compartment temperature monitoring device that predicts abnormalities in the room temperature of a vehicle in advance and performs appropriate notification and countermeasures. Objective.

  In order to solve the above-described problems and achieve the object, the vehicle room temperature monitoring apparatus according to the invention of claim 1 is a vehicle room temperature monitoring apparatus for monitoring the room temperature of the vehicle, and is based on the situation around the own vehicle. A temperature change prediction means for predicting a temperature change is provided.

  According to the first aspect of the present invention, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle.

  According to a second aspect of the present invention, the vehicle room temperature monitoring device according to the first aspect further comprises air conditioning processing means for controlling the air conditioning processing of the passenger compartment based on the prediction result by the temperature change prediction means. It is characterized by.

  According to the second aspect of the present invention, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, and controls the air conditioning processing of the passenger compartment based on the prediction result.

  According to a third aspect of the present invention, there is provided the vehicle room temperature monitoring device according to the first or second aspect, wherein the air conditioning processing means is configured to perform the temperature change during a pre-air conditioning process in which air conditioning is performed in advance before a passenger gets on the vehicle. The start timing and / or processing content of the pre-air conditioning process is determined based on the prediction result by the prediction means.

  According to the third aspect of the present invention, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle when air conditioning is performed in advance before the passenger gets on the vehicle, and performs air conditioning based on the prediction result. The process start timing and / or process contents are determined.

  According to a fourth aspect of the present invention, there is a possibility that the vehicle room temperature monitoring device according to the first aspect of the present invention may cause an abnormality in the room temperature of the vehicle based on a prediction result by the temperature change prediction means. In some cases, the information processing device further includes notification processing means for executing notification processing.

  According to the fourth aspect of the present invention, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, and executes a notification process when there is a possibility that an abnormality may occur in the vehicle room temperature. To do.

  According to a fifth aspect of the present invention, there is provided the vehicle room temperature monitoring apparatus according to the fourth aspect of the invention, wherein the closing necessity detecting means is the notification processing means based on a prediction result of the temperature change predicting means. It is further characterized by further comprising notification selection means for executing at least one of selection of whether or not to execute processing, selection of a notification destination in the notification processing, and selection of a notification method.

  According to the invention of claim 5, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, and whether or not the notification process can be performed based on the prediction result, the notification destination in the notification process, Select the notification method.

  According to a sixth aspect of the present invention, the vehicle room temperature monitoring device according to the fifth aspect of the present invention further comprises occupant position detecting means for detecting the position of the occupant, and the notification selecting means further uses the position of the occupant. Selection of whether or not to execute the notification process, selection of a notification destination and selection of a notification method in the notification process are executed.

  According to the sixth aspect of the present invention, the vehicle room temperature monitoring device predicts a change in the temperature of the passenger compartment based on the situation around the host vehicle and detects the position of the passenger. Based on the position, whether or not to execute the notification process, the notification destination in the notification process, the notification method, and the like are selected.

  According to a seventh aspect of the present invention, there is provided the vehicle room temperature monitoring device according to the fifth or sixth aspect, wherein the notification selection means is configured to receive the notification from an occupant, a surrounding of the own vehicle, a manager of the own vehicle, or a manager of a parking place. The point is selected.

  According to the seventh aspect of the present invention, the vehicle room temperature monitoring device predicts a change in the temperature of the passenger compartment based on the situation around the own vehicle, and if there is a possibility that an abnormality may occur in the room temperature of the vehicle, A notification destination is selected from the vicinity of the vehicle, the manager of the host vehicle, and the manager of the parking place, and the notification process is executed.

  In addition, the vehicle room temperature monitoring device according to the invention of claim 8 is the invention according to claim 5, 6 or 7, wherein the notification selection means includes an alarm device outside the vehicle, an in-vehicle lamp, an in-vehicle communication means, an audio output means, The notification means used for the notification is selected from the display means.

  According to the eighth aspect of the present invention, the vehicle room temperature monitoring device predicts a change in the temperature of the passenger compartment based on the situation around the host vehicle, and when there is a possibility that an abnormality occurs in the room temperature of the vehicle, The notification means to be used for notification is selected from the alarm device, the in-vehicle lamp, the in-vehicle communication means, the audio output means, and the display means, and the notification process is executed.

  According to a ninth aspect of the present invention, there is provided the vehicle room temperature monitoring apparatus according to the eighth aspect, wherein the in-vehicle communication means includes indirect communication means for performing communication via a network.

  According to the ninth aspect of the present invention, the vehicle room temperature monitoring device predicts a change in the temperature of the passenger compartment based on the situation around the host vehicle, and if there is a possibility that an abnormality may occur in the room temperature of the vehicle, the vehicle room temperature monitoring device The notification means to be used for notification is selected from a plurality of means including the indirect communication means for performing communication, and the notification process is executed.

  The vehicle room temperature monitoring device according to the invention of claim 10 is characterized in that, in the invention of claim 8 or 9, the in-vehicle communication means comprises direct communication means for directly communicating with a communication terminal possessed by an occupant. And

  According to the tenth aspect of the present invention, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, and the passenger is possessed when there is a possibility that the vehicle room temperature may be abnormal. A notification unit to be used for notification is selected from a plurality of units including a direct communication unit that directly communicates with a communication terminal to execute notification processing.

  According to an eleventh aspect of the present invention, in the vehicle room temperature monitoring device according to the first to tenth aspects of the present invention, the temperature change predicting means predicts a change in the amount of sunshine, and the temperature of the passenger compartment is determined from the change in the amount of sunshine. It is characterized by predicting changes.

  According to the invention of claim 11, the vehicle room temperature monitoring device predicts a change in the amount of sunlight, and predicts a change in the temperature of the passenger compartment from the change in the amount of sunlight.

  According to a twelfth aspect of the present invention, there is provided the vehicle room temperature monitoring device according to the eleventh aspect, wherein the temperature change predicting means determines the sunshine based on the amount of sunshine around the host vehicle, the time, the direction of the host vehicle, and the presence or absence of a shield. It is characterized by predicting a change in quantity.

  According to the twelfth aspect of the invention, the vehicle room temperature monitoring device predicts a change in the amount of sunlight from the amount of sunlight around the host vehicle, the time, the direction of the host vehicle, and the presence or absence of a shield, and the vehicle interior is determined from the change in the amount of sunlight. Predict the temperature change.

  According to a thirteenth aspect of the present invention, in the vehicle room temperature monitoring device according to the first to twelfth aspects of the present invention, the temperature change predicting means predicts a temperature change of the passenger compartment by further using the outside air temperature and the inside air temperature. It is characterized by.

  According to the invention of claim 13, the vehicle room temperature monitoring device predicts a change in the amount of sunlight and acquires the outside temperature and the inside temperature of the vehicle, and uses the change in the amount of sunlight, the outside temperature, and the inside temperature to change the temperature in the passenger compartment. Predict.

  According to the first aspect of the present invention, since the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, a vehicle room temperature monitoring device capable of predicting the temperature change in the passenger compartment with high accuracy is obtained. There is an effect that can be.

  According to the second aspect of the invention, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, and controls the air conditioning processing of the passenger compartment based on the prediction result. It is possible to obtain a vehicle room temperature monitoring device that accurately predicts the temperature change of the vehicle and executes appropriate air conditioning control.

  According to the invention of claim 3, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the own vehicle when air conditioning is performed in advance before the passenger gets on the vehicle, and based on the prediction result. Since the start timing and / or processing content of the air conditioning process is determined, an effect of obtaining a vehicle room temperature monitoring device capable of predicting the temperature change of the passenger compartment with high accuracy and optimizing the air conditioning process before boarding the passenger Play.

  According to the invention of claim 4, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, and performs a notification process when there is a possibility that the room temperature of the vehicle may be abnormal. Since this is executed, it is possible to obtain a vehicle room temperature monitoring device that predicts an abnormality in the room temperature of the vehicle in advance and executes an appropriate notification.

  According to the invention of claim 5, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, and determines whether or not the notification process can be performed based on the prediction result, and the notification destination in the notification process. Since the notification method or the like is selected, it is possible to obtain a vehicle room temperature monitoring device that can predict an abnormality in the room temperature of the vehicle in advance and optimize the notification process.

  According to the invention of claim 6, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, detects the position of the passenger, and predicts the temperature change in the passenger compartment and the passenger. The notification of whether or not to execute the notification process, the notification destination in the notification process, the notification method, and the like are selected based on the position of the vehicle. There is an effect that can be.

  Further, according to the invention of claim 7, the vehicle room temperature monitoring device predicts a change in the temperature of the passenger compartment based on the situation around the host vehicle, and when there is a possibility that an abnormality occurs in the room temperature of the vehicle, Since the notification destination is selected from the surroundings of the host vehicle, the manager of the host vehicle, and the manager of the parking place and the notification process is executed, the vehicle room temperature monitoring that predicts abnormalities in the room temperature of the vehicle in advance and notifies the appropriate notification destination There exists an effect that an apparatus can be obtained.

  According to the invention of claim 8, the vehicle room temperature monitoring device predicts a change in the temperature of the passenger compartment based on the situation around the host vehicle, and when there is a possibility that an abnormality may occur in the room temperature of the vehicle, Because the notification process is executed by selecting the notification means used for notification from the alarm device, vehicle lamp, vehicle communication means, audio output means, and display means, the vehicle room temperature abnormality is predicted in advance and appropriate notifications are made There is an effect that it is possible to obtain a vehicle room temperature monitoring apparatus that selects and notifies a process.

  According to the ninth aspect of the present invention, the vehicle room temperature monitoring device predicts a temperature change in the passenger compartment based on the situation around the host vehicle, and if there is a possibility that the vehicle room temperature may be abnormal, Since a notification means to be used for notification is selected from a plurality of means including an indirect communication means for performing communication via a communication process, a vehicle capable of predicting an abnormality in the room temperature of the vehicle in advance and notifying it via the network There is an effect that a room temperature monitoring device can be obtained.

  According to the invention of claim 10, the vehicle room temperature monitoring device predicts a change in the temperature of the passenger compartment based on the situation around the host vehicle, and if there is a possibility that the vehicle room temperature may be abnormal, The notification process is executed by selecting the notification means to be used for notification from a plurality of means including the direct communication means that directly communicates with the possessed communication terminal, so that an abnormality in the room temperature of the vehicle is predicted in advance and the passenger possesses There is an effect that it is possible to obtain a vehicle room temperature monitoring device that can remotely notify the terminal.

  According to the eleventh aspect of the invention, the vehicle room temperature monitoring device predicts a change in the amount of sunlight and predicts a change in the temperature of the passenger compartment from the change in the amount of sunlight. There is an effect that it is possible to obtain a vehicle room temperature monitoring device capable of predicting a temperature change with high accuracy.

  According to a twelfth aspect of the present invention, the vehicle room temperature monitoring device predicts a change in the amount of sunlight from the amount of sunlight around the host vehicle, the time, the direction of the host vehicle, and the presence or absence of an obstruction, and the vehicle changes from the change in the amount of sunlight. Since the temperature change of the room is predicted, it is possible to predict a change in the amount of sunlight with high accuracy, thereby obtaining a vehicle room temperature monitoring device that further improves the vehicle room temperature prediction accuracy.

  According to a thirteenth aspect of the present invention, the vehicle room temperature monitoring device predicts a change in the amount of sunlight, acquires an outside temperature and an inside temperature, and uses the change in the amount of sunlight, the outside temperature, and the inside temperature to detect the temperature of the passenger compartment. Since the change is predicted, there is an effect that it is possible to obtain a vehicle room temperature monitoring device that can predict the temperature change of the passenger compartment with high accuracy based on the change in the amount of sunlight and the temperature inside and outside the vehicle.

  Hereinafter, a vehicle room temperature management apparatus which is a preferred embodiment of a vehicle room temperature monitoring apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic configuration diagram illustrating a schematic configuration of a vehicle room temperature management apparatus according to an embodiment of the present invention. As shown in the figure, the vehicle room temperature management device 1 includes a navigation device 2, an air conditioning control device 3, a sunshine sensor 22, an outside air temperature sensor 23, an indoor air temperature sensor 24, a vehicle outside camera 25, a seat sensor 26, an ignition sensor 27, a vehicle interior. It is connected to a notification system 4, an outside notification system 5, a lighting system 6, and a communication system 7.

  The navigation device 2 is a device that sets and guides the travel route of the host vehicle. Specifically, the navigation device 2 acquires the current position of the host vehicle by the GPS communication unit 21, identifies the road on which the host vehicle is traveling using the map data 2 a, and displays the display 41 inside the notification system 4 and Route guidance is executed using the speaker 42. The navigation device 2 outputs time information and map information around the vehicle to the passenger compartment temperature management device 1.

  The air conditioning control device 3 is a device that executes cooling and heating in the vehicle based on an instruction from the user or an instruction from the vehicle room temperature management device 1. Moreover, you may make this air-conditioning control apparatus 3 control operation | movement of the electric curtain provided in the window.

  The sunshine sensor 22 is a sensor that measures sunshine around the vehicle. The sunshine sensor 22 is constituted by, for example, a photodiode, and is conventionally used for lighting control and the like.

  The outside air temperature sensor 23 is a sensor that measures the temperature outside the host vehicle, and the room temperature sensor 24 is a sensor that measures the temperature inside the vehicle interior. Further, the outside camera 38 is a photographing means for photographing the periphery of the vehicle.

  The seat sensor 26 is a sensor that detects a seating state of an occupant in a seat in a vehicle such as a driver's seat. The ignition sensor 27 is a sensor that detects an operation state of an ignition key used by a user for starting / stopping the engine and turning on / off the power of the in-vehicle device.

  The in-vehicle notification system 4 is a group of devices that perform notification to users in the vehicle, and specifically includes an in-vehicle display 41 that performs display output, an in-vehicle speaker 42 that performs audio output, and the like. This in-vehicle notification system 4 is shared by various in-vehicle devices such as the vehicle room temperature management device 1, the navigation device 2, and the air conditioning control device 3.

  Specifically, the outside notification system 5 includes a horn 51, an outside speaker 52, an outside display 53, and the like. Here, the horn 51 originally outputs a warning sound during traveling, but has recently been used as a notification device for users near the vehicle. The outside speaker 52 is a device that outputs a sound to the outside of the vehicle, and the outside display 53 is a display means provided so as to be visible from the outside of the vehicle.

  The lighting system 6 includes a headlight 61, a blinker lamp 62, a brake lamp (not shown), and the like. The device included in the lighting system 6 is originally used for lighting during travel, announcement of a plan for turning left and right, notification of deceleration, etc. It is used.

  The communication system 7 is a device group that performs communication between the vehicle and the outside, and includes an indirect notification device 71, a direct communication device 72, a road-to-vehicle communication device 73, and the like. The indirect communication device 71 is an indirect communication means for communicating with a terminal possessed by a user, a predetermined contact address, or the like via a telephone line or the Internet.

  The direct communication device 72 is direct communication means for directly communicating with a terminal possessed by the user, for example, a remote key terminal for remotely operating a door lock mechanism of the vehicle. Note that the terminal with which the direct communication device 72 communicates and the terminal with which the indirect communication device 71 communicate may be formed integrally, and may have other functions such as a mobile phone function.

  The road-to-vehicle communication device 73 is a communication device that communicates with a roadside communication device installed on the road surface and acquires road surface information, traffic information, and the like.

  The vehicle room temperature management device 14 includes a temperature change prediction unit 11, a danger determination unit 12, a user position detection unit 13, an air conditioning processing unit 14, and a notification processing unit 15 therein.

  The user position detection unit 13 detects the user's position and its boarding / alighting based on the outputs of the outside camera 25, the seat sensor 26, the ignition sensor 27 and the communication system 7. Specifically, if the output of the ignition sensor 27 indicates that the ignition key is on, it can be estimated that the user is in the driver's seat. Further, it can be determined from the output of the seat sensor 26 whether or not the user is in the vehicle. Furthermore, the output of the seat sensor 26 can also be used to determine whether there are other passengers such as children in the vehicle. In addition, for determining whether or not an occupant is in the vehicle, a camera for photographing the inside of the vehicle can be used.

  Next, if the image captured by the outside camera 25 is processed and the user can be identified from the image, it can be determined that the user is in the vicinity of the vehicle. Similarly, if the mobile terminal possessed by the user and the direct communication device 72 can communicate with each other, it can be determined that the user is in the vicinity of the vehicle, at least within the range of the distance that can be communicated with the mobile terminal.

  On the other hand, when it is determined from the output of the seat sensor 26 or the ignition sensor 27 that the user is not in the vehicle and it is determined from the output of the vehicle camera 25 or the communication system 7 that the user is not in the vicinity of the vehicle, the user position determination unit 13 determines that the distance between the user and the vehicle is large.

  The temperature change prediction unit 11 predicts a change in the amount of sunshine to be inserted into the vehicle using time information output from the sunshine sensor 22, the outside camera 25, the navigation device 2, and map information around the vehicle.

  Specifically, from the time information (including the date and time), it is possible to specify the direction of the sun and its change, and by using the direction of the host vehicle, it is possible to predict how much sunlight enters the vehicle. Here, when there is a shield against sunlight, such as a building or another vehicle, around the vehicle, the amount of sunshine inserted into the vehicle is reduced. By acquiring from the above, it is possible to predict the change in the amount of sunshine inserted into the vehicle in more detail.

  In addition, since the amount of sunlight incident on the host vehicle changes depending on the weather at that time (whether it is sunny or cloudy), the weather state is acquired from the sunshine sensor 22 or the road-to-vehicle communication device 73 and used. .

  The temperature change prediction unit 11 predicts how the vehicle room temperature will change based on the changes in the amount of sunlight predicted in this way and the outputs of the outside air temperature sensor 23 and the vehicle interior temperature sensor 24, and The data is output to the determination unit 12 and the air conditioning processing unit 14.

  The danger determination processing unit 12 determines whether there is a possibility that the temperature in the vehicle becomes an abnormal temperature based on the outputs of the user position detection unit 13 and the temperature change prediction unit 11. Then, based on the determination result, the notification processing unit 15 performs notification to the user or a third party when necessary.

  Here, the prediction process by the temperature change prediction unit 11 and the risk determination process by the risk determination unit 12 will be described with specific examples. First, in FIG. 2, the same room temperature Te10 continues from time Ti10 to time Ti11. Thereafter, the amount of sunlight changes at time Ti1, the room temperature rises, and reaches room temperature Ti11 at time Ti12.

  Here, if it is determined whether or not the vehicle room temperature changes to an abnormal temperature (here, the danger determination unit 12 uses the room temperature Te11 as a threshold value) only from the change in the room temperature, before the time Ti. Cannot predict a change to abnormal room temperature (room temperature Te11).

  However, by predicting the change in the amount of sunlight and predicting that the room temperature will rise from time Ti11, it is possible to foresee the arrival of the abnormal room temperature at time Ti12 before time Ti11, and to perform notification and countermeasures. .

  In FIG. 3, the room temperature continues to rise from Te20 between time Ti20 and time Ti21. Thereafter, the amount of sunlight changes at time Ti21, and the subsequent room temperature becomes Te21.

  Here, if it is determined whether or not the vehicle room temperature changes to an abnormal temperature (here, the danger determination unit 12 uses the room temperature Te22 as a threshold value) only from the change in the room temperature, the time before the time Ti is determined. In the determination, it is determined that the abnormal room temperature (room temperature Te22) is reached at time Ti22, and the notification is erroneously executed.

  However, if a change in the amount of sunshine is predicted and the rise in room temperature is predicted to stop from time Ti21, an erroneous notification (notification of reaching abnormal room temperature at time Ti22) can be prevented.

  Here, the threshold used by the risk determination unit 12 for determination can be arbitrarily set. At this time, for example, a determination threshold value that differs depending on the situation may be used, such as a situation in which there is no passenger in the vehicle, a situation in which a child is on board, a situation in which a pet is placed, a situation in which frozen items are placed, etc. .

  That is, for example, if there are children in the car, use strict judgment thresholds (a relatively low threshold for detecting abnormally high temperatures and a relatively high threshold for detecting abnormally low temperatures) in order to avoid danger to children. Is desirable. On the other hand, in the situation where no one is in the vehicle, the purpose is to prevent abnormalities in the vehicle due to abnormally high temperatures, such as the rupture of spray cans and lighters. A relatively low threshold) can be used for detection.

  Thus, by predicting the change in the amount of sunlight and using the result, it is possible to accurately predict the change in the vehicle room temperature and execute appropriate notification and countermeasures.

  This highly accurate prediction of the vehicle room temperature is also useful in air conditioning processing, and the air conditioning processing unit 14 controls the air conditioning control device 3 using the prediction result by the temperature change prediction unit 11.

  Here, as a specific example, the air-conditioning processing unit 14 performs air-conditioning processing in advance before boarding the user, and uses the prediction result by the temperature change prediction unit 11 in the pre-air-conditioning processing for controlling the vehicle to have a comfortable vehicle room temperature when the user gets on. The case will be described.

  As shown in FIG. 4, when the pre-air-conditioning process is performed so that the vehicle room temperature Te30 at the time Ti30, which is the initial state, and the vehicle room temperature Te31 at the time Ti35 when the user plans to board the vehicle, the vehicle at the time Ti30 If the start timing of the pre-air conditioning process is determined only from the room temperature Te30, it is determined that the process needs to be started at time Ti31.

  However, if the amount of sunshine changes at time Ti32 and the vehicle room temperature rises due to sunshine, the rate of increase in the vehicle room temperature increases from time Ti32, and processing ends at time Ti33 earlier than time Ti35, which is essentially unnecessary. The air-conditioning process that has been performed will be executed.

  Here, if the change in the amount of sunshine at the time Ti32 is predicted, the start timing of the air conditioning process can be determined as the time Ti34, and the target room temperature Te31 can be reached at the time Ti35.

  In FIG. 2 and FIG. 3, an abnormal increase in the vehicle room temperature is taken as an example, but an abnormal decrease in the vehicle room temperature can also be determined by the same processing. In the description of FIG. 4, the pre-air conditioning processing by heating has been described, but the pre-air conditioning processing by cooling can be similarly processed.

  Next, the notification processing unit 15 will be described. The notification processing unit 15 is a processing unit that executes notification processing for a user or a third party based on the outputs of the danger determination unit 12 and the user position detection unit 13. The notification processing unit 15 includes a selection processing unit 16 therein, and the selection processing unit 16 selects a notification unit used for the notification processing.

  For example, when the danger determination unit 12 detects the possibility that an abnormality occurs in the vehicle room temperature, the selection processing unit 16 selects a notification unit to be used based on the user position output by the user position detection unit 13. Specifically, when the user is in the vehicle, the in-vehicle notification system 4 is selected, and when the user is in the vicinity of the vehicle, the out-of-vehicle notification system 5, the lighting system 6, the direct communication device 72, and the like are selected.

  When the user is not in the vehicle or in the vicinity of the vehicle, the notification means to be used and the content of the notification are determined according to the degree of urgency of the notification, the magnitude of danger, whether or not the user can return to the vehicle, and the like.

  More specifically, when an abnormal increase in the vehicle room temperature is predicted with a child in the vehicle, if the user can return to the vehicle by the predicted time when the vehicle room temperature reaches the threshold, the indirect communication device 71 is used to inform the user. Notice. However, if the user cannot return to the vehicle, the outside notification system 5 or the lighting system 6 is used to ask for help to the surroundings of the vehicle, and the indirect communication device 71 uses a third party such as an administrator of the parking place of the vehicle. To report to.

  Whether or not the user can return to the vehicle is determined by the time from when the user leaves the vehicle until the user is notified until the predicted time (danger predicted time) when the vehicle room temperature becomes abnormal after the user is notified If it is larger than this time, it may be determined that the user can return to the vehicle.

  That is, as shown in FIG. 5, if the time ΔT1 from the time Ti40 when the user gets off to the notification time Ti41 is smaller than the time ΔT2 from the notification time Ti41 to the predicted danger time Ti43, the user No matter how much you move, it will be judged that you can return to the vehicle by spending the same time.

  Alternatively, the indirect communication device 71 may be used first to notify the user, and thereafter, if there is no response from the user until ΔT1 = ΔT2, help may be obtained from the vehicle periphery or a third party.

  In this way, by selecting the notification means to be used based on the user's location, the time until the occurrence of danger, the urgency of the notification, and the magnitude of the danger, the notification adapted to the situation is executed and unnecessary notifications are suppressed In addition, the danger can be effectively avoided.

  Next, the processing operation of the vehicle room temperature management apparatus 1 will be described. FIG. 6 is a flowchart for explaining an abnormal room temperature prediction process and a notification process in the vehicle room temperature management apparatus 1. This processing flow is a processing flow in a state where the user gets off, and is repeatedly executed when the user position detection unit 13 detects the user's getting off.

  First, the temperature change prediction unit 11 predicts a change in the amount of sunlight that is inserted into the host vehicle from the time, the amount of sunlight, the direction of the host vehicle, a shield, and the like (step S101). Next, the temperature change prediction unit 11 predicts the temperature change in the vehicle based on the change in the amount of sunlight, the outside air temperature, and the vehicle interior temperature (step S102).

  Thereafter, the danger determination unit 12 determines whether or not there is a possibility that an abnormality will occur in the vehicle interior temperature (step S103), and if there is no possibility that an abnormality will occur (step S103, No), the process ends. .

  On the other hand, if there is a possibility that an abnormality occurs in the vehicle interior temperature (step S103, Yes), the selection processing unit 16 determines whether the user is in the vicinity of the vehicle based on the output of the user position detection unit 13. (Step S104).

  As a result, if the user is in the vicinity of the vehicle (step S104, Yes), the notification processing unit 15 executes a short-distance notification to the user using the outside-of-vehicle notification system 5, the lighting system 6, and the direct communication device 72 (step S104). S105), the process is terminated.

  On the other hand, when the user is not in the vicinity of the vehicle (step S104, No), the selection processing unit 16 next determines whether or not the user can return to the vehicle (step S106). As a result, if the user can return to the vehicle (step S106, Yes), the notification processing unit 15 performs a long-distance notification to the user using the indirect communication device 71 (step S107), and ends the process.

  On the other hand, when the user cannot return to the vehicle (step S106, No), the notification processing unit 108 uses a notification to the third party in the vicinity of the vehicle using the outside notification system 5 and the lighting system 6, and uses the indirect communication device 71. The third party is notified (step S108), and the process is terminated.

  Here, this processing flow is repeatedly executed after the user gets off because the situation of the vehicle changes due to the movement of a shield such as another vehicle or a change in weather, and an abnormal room temperature that cannot be determined at the time of getting off may occur. It is because there is sex.

  Next, the processing operation in the pre-air conditioning processing by the vehicle room temperature management device 1 will be described with reference to the flowchart shown in FIG. This process flow is executed when the execution of the pre-air conditioning process is instructed.

  As shown in the figure, first, the temperature change prediction unit 11 predicts a change in the amount of sunlight that is inserted into the host vehicle from the time, the amount of sunlight, the direction of the host vehicle, the shielding, and the like (step S201). Next, the temperature change prediction unit 11 predicts the temperature change in the vehicle based on the change in the amount of sunlight, the outside air temperature, and the vehicle interior temperature (step S202).

  Thereafter, the air-conditioning processing unit 14 calculates the start timing and control amount of air-conditioning control necessary to obtain an appropriate room temperature at the time of boarding (step S203). Then, air conditioning control is executed at the calculated timing and control amount (step S204), and the process is terminated. Therefore, for example, when a considerably high temperature is expected at the time of boarding, it is possible to realize control such as executing air conditioning processing early.

  As described above, the vehicle room temperature monitoring apparatus according to the present embodiment predicts a change in the temperature of the passenger compartment from the change in the amount of sunlight that is inserted into the vehicle, so that it is possible to accurately predict the occurrence of an abnormality at room temperature. Air conditioning control can be optimized.

  In addition, by selecting the notification means to be used based on the user's location, the time until the occurrence of danger, the urgency of the notification, and the magnitude of the danger, the notification adapted to the situation is executed and unnecessary notifications are suppressed. At the same time, danger can be effectively avoided.

  As described above, the vehicle room temperature monitoring device according to the present invention is useful for vehicle monitoring, and is particularly suitable for preventing occurrence of abnormalities at room temperature in the vehicle and optimizing air conditioning processing.

1 is a schematic configuration diagram showing a schematic configuration of a vehicle room temperature monitoring apparatus according to an embodiment of the present invention. It is explanatory drawing explaining the prediction of room temperature, and danger determination (the 1). It is explanatory drawing explaining the prediction of a room temperature, and danger determination (the 2). It is explanatory drawing explaining the prediction of a room temperature, and an air-conditioning process. It is explanatory drawing explaining the judgment whether a user can return to a vehicle. It is a flowchart explaining the prediction process and notification process of abnormal room temperature. It is a flowchart explaining the processing operation in a prior air conditioning process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car room temperature management apparatus 2 Navigation apparatus 2a Map data 3 Air-conditioning control apparatus 4 In-car notification system 5 Out-of-car notification system 6 Light system 7 Communication system 11 Temperature change prediction part 12 Risk judgment part 13 User position detection part 14 Air-conditioning process part 15 Notification process Unit 16 Selection processing unit 21 GPS communication unit 22 Sunlight sensor 23 Outside air temperature sensor 24 Indoor air temperature sensor 25 Outside camera 26 Seat sensor 27 Ignition sensor 41 Inside display 42 Inside speaker 51 Horn 52 Outside speaker 53 Outside display 61 Headlight 62 Winker lamp 71 Indirect communication device 72 Direct communication device 73 Road-to-vehicle communication device

Claims (13)

A vehicle room temperature monitoring device for monitoring the room temperature of a vehicle,
A vehicle room temperature monitoring device comprising temperature change prediction means for predicting a temperature change in a passenger compartment based on a situation around the host vehicle.   The vehicle room temperature monitoring device according to claim 1, further comprising air conditioning processing means for controlling air conditioning processing of the passenger compartment based on a prediction result by the temperature change prediction means.   The air conditioning processing means determines a start timing and / or processing content of the preliminary air conditioning processing based on a prediction result by the temperature change prediction means when executing a preliminary air conditioning processing in which air conditioning is performed in advance before a passenger gets on the vehicle. The vehicle room temperature monitoring device according to claim 1 or 2, wherein   The notification processing means for executing a notification process when there is a possibility that an abnormality occurs in the room temperature of the vehicle based on a prediction result by the temperature change prediction means. The vehicle room temperature monitoring device described in 1.   The notification processing unit executes at least one of selection of whether or not to execute the notification processing, selection of a notification destination and selection of a notification method in the notification processing based on a prediction result of the temperature change prediction unit. 5. The vehicle room temperature monitoring apparatus according to claim 4, further comprising notification selection means for performing the selection.   Further comprising occupant position detecting means for detecting the position of the occupant, wherein the notification selecting means further uses the occupant position to select whether to execute the notification process, to select a notification destination and to select a notification method in the notification process The vehicle room temperature monitoring device according to claim 5, wherein:   7. The vehicle room temperature monitoring apparatus according to claim 5, wherein the notification selection unit selects the notification destination from an occupant, a surrounding area of the own vehicle, a manager of the own vehicle, and a manager of a parking place.   The said notification selection means selects the notification means used for a notification from the alarm device outside a vehicle, an in-vehicle lamp, an in-vehicle communication means, an audio | voice output means, and a display means, The Claim 5, 6 or 7 characterized by the above-mentioned. Car room temperature monitoring device.   9. The vehicle room temperature monitoring apparatus according to claim 8, wherein the in-vehicle communication means includes indirect communication means for performing communication via a network.   10. The vehicle room temperature monitoring apparatus according to claim 8, wherein the in-vehicle communication means includes direct communication means for directly communicating with a communication terminal possessed by a passenger.   11. The vehicle room temperature according to claim 1, wherein the temperature change predicting unit predicts a change in the amount of sunlight, and predicts a temperature change in the passenger compartment from the change in the amount of sunlight. Monitoring device.   12. The vehicle room temperature monitoring device according to claim 11, wherein the temperature change prediction means predicts a change in the amount of sunlight from the amount of sunshine around the host vehicle, time, direction of the host vehicle, and presence / absence of an obstruction.   The vehicle temperature monitoring apparatus according to any one of claims 1 to 12, wherein the temperature change predicting means predicts a temperature change of the passenger compartment by further using an outside air temperature and an inside air temperature.

Images