JP5062185B2 - Air conditioning controller - Google Patents

Description

  The present invention relates to an air conditioning controller that is operated by a built-in power source.

  The air-conditioning controller may be driven by a built-in power source such as a battery depending on the circumstances of each household. In this case, especially when the battery is completely consumed, the system cannot be controlled from the controller, the system may not operate normally, and may be stopped. Therefore, although it is necessary to monitor the remaining battery level, an extra battery is consumed in a circuit for monitoring the remaining battery level, so that the frequency of battery replacement or charging is increased. . Therefore, for example, with respect to a portable terminal device, a technique for changing the detection period of the remaining battery level is provided (see, for example, Patent Document 1).

  According to the technical idea described in Patent Document 1, the remaining capacity of the battery is detected, the detected remaining capacity is stored as a battery status, and the monitoring period is changed based on the measured value of the remaining battery capacity, and the battery status is stored. The information is changed.

JP 2000-231939 (paragraph 0024, FIG. 5)

However, since it takes time to monitor the remaining amount of the built-in power supply, there is a problem that efficiency is poor.
The present invention has been made in view of the above circumstances, and an object thereof is to provide an air conditioning controller capable of efficiently monitoring the remaining amount of a built-in power supply.

  In order to solve the above-described problems, according to the first aspect of the present invention, an air conditioning controller that is operated by a built-in power supply is targeted. The storage means of this air conditioning controller supports a plurality of different voltage values and one each of the plurality of different voltage values so that a high voltage value is long and a low voltage value is short. A plurality of standby time values are stored at equal intervals so that a high voltage value indicates a small address value and a low voltage value indicates a large address value.

  The initial setting control means is a variable used in the voltage monitoring control means: ROM address (previous times), ROM address (previous times), ROM address (previous), ROM address (current) among ROM addresses (current) The smallest address value among the addresses where the voltage values are stored in the storage means is substituted in the memory means two times before, and the ROM address (previous times) is the same as the ROM address (previous times). The next smaller address value is assigned to the rom address (previous), and the next smaller address value is assigned to the rom address (previous time). Similarly to the ROM address (previous), the address value next to the ROM address (previous) is substituted, and the waiting time value stored in the address indicated by the ROM address (current) is substituted for the waiting time value. Substituting the time value, substituting the waiting time value stored in the address indicated by the ROM address (current) for the waiting time value, controlling the start of waiting time counting using the waiting time count variable value, and monitoring the voltage A monitoring flag indicating whether or not to perform control is controlled to be on.

  The voltage monitoring control means is in an ON state indicating that the voltage monitoring control is performed when the monitoring flag indicating whether or not the voltage monitoring control is performed during the operation of the normal operation control means, and the count value of the waiting time count The voltage detection means is operated on the condition that the value becomes larger than the waiting time value, and control is performed to acquire the current voltage value of the built-in power supply as the monitoring voltage detection value, and the monitoring voltage detection value is held in advance. Control to compare with a threshold value indicating a minimum voltage necessary for operating the air conditioning controller. When the monitored voltage detection value is smaller than the threshold value, the monitoring flag is turned off and the monitored voltage detection value is Control is performed to notify that the value is smaller than the threshold value.

  The voltage monitoring control means subtracts the rom address (previous) from the rom address (previous) to generate the first address number when the monitored voltage detection value is equal to or greater than the threshold, and generates the first address number from the rom address (previous) Control is performed to generate a second address number by subtracting the addresses (previous times) and compare the first address number with the second address number.

  In this case, if the first address number and the second address number are the same, the voltage monitoring control means substitutes a value obtained by adding the value of the ROM address (previous) and the first address number to the ROM address (current). The voltage value stored at the address indicated by the ROM address (current) is set as a call comparison voltage value, and the comparison voltage value and the monitored voltage detection value are compared.

  The voltage monitoring control means performs a process of adding the same value as the value indicated by the equal interval to the ROM address (current) when the comparison voltage value is larger than the monitoring voltage detection value, and again The voltage value stored at the address indicated by the ROM address (current) is set as a call comparison voltage value, and the comparison voltage value controls the comparison between the comparison voltage value and the monitored voltage detection value. Repeated control is performed until the voltage is equal to or lower than the detected voltage value.

  In addition, when the detected voltage detection value is equal to or higher than the comparison voltage value, the voltage monitoring control unit substitutes the value of the ROM address (previous times) into the ROM address (previous times), and the ROM address (previous times). Substitute the value of the ROM address (previous), wait for the address update control to assign the value of the ROM address (current) to the ROM address (previous) and the waiting time value stored at the address indicated by the ROM address (current) Perform standby time update control to be assigned to the time value.

  Further, if the first address number and the second address number are not the same, the voltage monitoring control means substitutes a value obtained by adding the value of the ROM address (previous) and the value indicated by the equal interval to the ROM address (current). Then, the voltage value stored at the address indicated by the ROM address (current) is set as a call comparison voltage value, and the comparison voltage value and the monitored voltage detection value are compared.

  In addition, when the comparison voltage value is larger than the monitoring voltage detection value, the voltage monitoring control means performs addition processing by the same value as the value indicated by the equal interval from the ROM address (current), and again The voltage value stored in the address indicated by the address (current) is called and set as a comparison voltage value, and the comparison voltage value controls the comparison between the comparison voltage value and the monitored voltage detection value. Control is repeated until the value is below the detection value.

  In addition, when the detected voltage detection value is equal to or higher than the comparison voltage value, the voltage monitoring control unit substitutes the value of the ROM address (previous times) into the ROM address (previous times), and the ROM address (previous times). Substitute the value of the ROM address (previous), wait for the address update control to assign the value of the ROM address (current) to the ROM address (previous) and the waiting time value stored at the address indicated by the ROM address (current) The waiting time update control to be substituted for the time value is performed, and after the waiting time update control, the control for starting the count value of the waiting time count from zero again is performed.

  In short, when the monitored voltage detection value is larger than the threshold, the first address number is generated by subtracting the rom address (previous) from the rom address (previous), and the rom address (previous) ) Is subtracted to generate the second address number, and the first address number and the second address number are compared. If the first address number and the second address number are the same, the ROM address (current) is the ROM address. The value obtained by adding the (previous) value and the first address number is substituted, and the voltage value stored at the address indicated by the ROM address (current) is set as a call comparison voltage value. Control is performed to compare the monitored voltage detection value.

  In other words, if the degree of decrease of the previous ROM address to be referred to is the same as the previous decrease degree, the comparison is performed by skipping the ROM address to be referred to. Efficient supervisory control for air-conditioning controllers that can reduce the required power consumption and consume power from the same built-in power supply (for example, battery or battery) as well as the power required for original control and power used for power monitoring become.

  On the other hand, if the degree of decrease of the previous ROM address to be referenced is different from the previous decrease degree, the ROM address is referred to one by one and compared, so even if a sudden drop in the monitoring voltage occurs be able to. And even if the degree of decrease occurs, if the degree of decrease is the same again, the ROM address to be referenced is skipped for comparison, so that efficient comparison can be performed again. Become. Therefore, it is possible to efficiently perform the monitoring control even when the degree of decrease continues when the monitored voltage detection value gradually decreases, or when the degree of decrease continues when it rapidly decreases. As long as there is no change in the degree of decrease, for example, the monitoring control can be performed efficiently from almost the first voltage monitoring control to the last voltage monitoring control. The power used for the air conditioning controller is also very suitable for an air conditioning controller that is consumed from the same built-in power supply.

  The names “ROM address (current)”, “ROM address (previous)”, “ROM address (previous times)”, and “ROM address (previous times)” represent independent variables.

The flowchart which shows schematic operation | movement about one Embodiment of this invention. Block diagram schematically showing the electrical configuration The figure showing a part of correspondence of ROM address memorize | stored in ROM and threshold voltage (A) is a diagram showing a part of the correspondence between the threshold voltage stored in the memory and the standby time value, and (b) is a diagram showing the variation of the battery voltage according to time. Flow chart schematically showing control main routine Flow chart schematically showing initial setting control Correspondence diagram showing relationship between ROM address and threshold voltage and status of each variable (Part 1) Correspondence diagram showing relationship between ROM address and threshold voltage and status of each variable (Part 2)

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 2 is a schematic block diagram showing the electrical configuration of the air conditioning controller according to the present embodiment.

  As shown in FIG. 2, the air conditioning controller 1 includes a control unit 2, a key input unit 3, a liquid crystal display unit 4, a liquid crystal backlight 5, and a battery voltage detection unit 6 connected to the control unit 2. It is configured. The control unit (control unit) 2 includes a CPU 2a and a memory (storage unit) 2d including a RAM 2b and a ROM (storage unit) 2c, and includes an input / output interface (not shown). The control unit 2 functions as initial setting control means, normal operation control means, and voltage monitoring control means.

  The key input unit 3 includes, for example, a key switch, a touch panel provided on the liquid crystal, and the like, and can input various information. The liquid crystal display unit 4 is an image display device in which a liquid crystal element is incorporated, and displays by blocking or transmitting light emitted from the light source of the liquid crystal backlight 5 by the liquid crystal panel.

  This air-conditioning controller 1 is configured by providing a battery 7 as a built-in power source so that it can be connected to the battery voltage detector 6. The battery voltage detection unit 6 is configured to be able to detect the voltage of the battery 7 when the battery 7 is connected. With such a configuration, the air conditioning controller 1 is configured to set the temperature and the air volume so as to maintain a comfortable room temperature for an air conditioner (not shown). In such an air-conditioning controller 1, the power consumption of the battery 7 by the liquid crystal backlight 5 is particularly intense, and therefore the voltage of the battery 7 may fluctuate rapidly. In this embodiment, the remaining amount of the battery 7 is efficiently monitored. The form which was made to perform is shown. Instead of the battery 7, a storage battery such as a battery may be applied as a built-in power source.

  FIG. 3 shows an example of the voltage value stored in association with the ROM address, and FIG. 4A shows an example of the standby time value stored in correspondence with the voltage value. As shown in FIG. 3, ROM 2c has ROM addresses allocated in order (n: +1: other +2 in FIG. 3) in order, and different voltage values are stored in these ROM addresses. Yes.

  In each address of the ROM 2c, a relatively high voltage value is stored at a small address, and a relatively low voltage value is stored at a large address. Accordingly, among the voltage values stored in the ROM 2c, those having a high voltage value are stored at equal intervals so that the ROM address having a small address value is stored and those having a low voltage value are stored having a large address value. . Also, as shown in FIG. 4A, the memory 2d has a long time for a high voltage value and a short time for a low voltage value, one for each of a plurality of different voltage values. A plurality of standby time values associated with is stored.

  The standby time value indicates the monitoring interval of the voltage of the battery 7. FIG. 4B schematically shows the relationship between the battery voltage and the standby time value (shown as “interval” in the figure). In FIG. 4B, the horizontal axis indicates the elapsed time, and the vertical axis indicates the voltage of the battery 7. As shown in FIG. 4B, the standby time is long when the voltage of the battery 7 is high, and the standby time (monitoring interval) is shortened as the voltage of the battery 7 decreases with time. Is set.

  FIG. 5 shows a control main routine mainly performed by the control unit. As shown in FIG. 5, after performing the initial setting control (S1), the control unit 2 performs the voltage monitoring control (S3) while performing the normal operation control (S2). Below, each control content of initial setting control and voltage monitoring control is mainly demonstrated.

  As shown in FIG. 5, the control unit 2 performs initial setting at the time of startup in the initial setting control (S1). FIG. 6 schematically shows an initial setting control routine. First, the control unit 2 sets the monitoring flag to “ON” (T1). This monitoring flag indicates a flag indicating a status that is “ON” while the voltage of the battery 7 is being monitored and is “OFF” if the voltage of the battery 7 is not monitored. Next, the control unit 2 sets an initial address (T2). In this initial address setting, the initial values of the address values of “ROM address (previous)”, “ROM address (previous)”, “ROM address (previous)”, and “ROM address (current)” are substituted. FIG. 7A shows the initial status corresponding to the ROM address and voltage.

  Specifically, the smallest address value (A000H in FIG. 7A) among the addresses where the voltage value (ROM value) is stored is substituted for “ROM address (two times before last)”. An address value (A001H in FIG. 7A) larger than “ROM address (previous times)” is assigned to “ROM address (previous times)”. For “ROM address (previous)”, an address value (A002H in FIG. 7A) larger than “ROM address (previous)” is substituted. For “ROM address (current)”, an address value (A003H in FIG. 7A) larger than “ROM address (previous)” is substituted.

  Next, the control part 2 detects the voltage of the battery 7 by the battery voltage detection part 6 (T3). Although not shown, at this time, the control unit 2 confirms whether or not the voltage of the battery 7 has risen above a predetermined voltage, and performs normal operation control on the condition that the voltage has risen above the predetermined voltage.

  The control unit 2 determines whether or not the voltage of “ROM address (current)” is smaller than the monitored voltage detection value (T4), and the voltage of “ROM address (current)” is equal to or higher than the monitored voltage detection value ( In (T4: NO), "ROM address (current)" is incremented (+1) (T5). The addition of the ROM address is “1” in this embodiment, but if the address is allocated at equal intervals of 2 or more, it is sufficient to add only the “equal interval” in FIG. In step T5, “n” is added.

  The control unit 2 proceeds to Step T6 on the condition that the voltage of “ROM address (current)” becomes smaller than the monitored voltage detection value. FIG. 7B shows the status at this time. As shown in FIG. 7A, when the monitored voltage detection value is 2.45V, the ROM address “A005H” in which the voltage of 2.4V smaller than the monitored voltage detection value is stored is changed to “ROM address”. (Present) "address (see FIG. 7B).

  The control unit 2 substitutes the waiting time value into the waiting time value (T6). At this time, the control unit 2 refers to the memory 2d and substitutes the waiting time value of 5 seconds shown in FIG. 4A corresponding to the voltage of 2.4 V into the “waiting time value”. This “waiting time value” is a variable value that becomes a limit when time counting is performed, and starts counting using a timer or the like (T7). ”(In this case, 5 seconds) is counted. In this way, initial setting control is performed.

  Returning to FIG. 5, next, the control unit 2 performs normal operation control (S2). The normal operation control is control related to the air conditioning control, and the temperature and the temperature are controlled so as to maintain a comfortable room temperature for the air conditioner. The control for setting the air volume is shown. Detailed description thereof will be omitted. Next, the control unit 2 performs voltage monitoring control (S3).

  FIG. 1 shows a voltage monitoring control routine. As shown in FIG. 1, the control unit 2 counts the time until the monitoring flag is “OFF” (U1: OFF) or the waiting time count variable value reaches the “waiting time value”. If the time is not up (U2: NO), the process returns to the voltage monitoring control routine to perform normal operation control. If these conditions are not satisfied (U2: YES), the monitoring voltage is detected (U3). ).

  Next, the control unit 2 compares the threshold voltage with the monitoring voltage detection value (U4), and the monitoring voltage detection value is the threshold value on condition that the monitoring voltage detection value is smaller than the threshold voltage (U4: NO). Warning information indicating that the voltage is lower than the voltage is notified (U5), and the monitoring flag is set to “OFF” (U6). This “threshold voltage” is for defining the minimum voltage necessary for operating the air conditioning controller 1, and is set in advance to 1.5 V, for example, as shown in FIG. Is stored within. After the process of step U6, the process returns to exit the voltage monitoring control routine and perform normal operation control.

  The control unit 2 compares the threshold voltage with the monitored voltage detection value in Step U4, and performs the processing after Step U7 on the condition that the monitored voltage detection value is equal to or higher than the threshold voltage (U4: YES). In step U7, the control unit 2 subtracts “ROM address (previous)” from “ROM address (previous)” (corresponding to the first address number) and “ROM address (previous)” to “ROM address (previous)”. Compared to the value obtained by subtracting “second time before” (corresponding to the second address number) and if these values are not identical (U7: NO), the address value of “ROM address (previous)” is incremented ( +1) (add the value n indicated by “Equal Interval”) and set it to the value of “ROM Address (Current)” (U8).

  Next, the control unit 2 substitutes the data stored in the address indicated by “ROM address (current)” as “comparison voltage value” (U9), and whether the comparison voltage value is larger than the monitored voltage detection value. It is determined whether or not (U10). The control unit 2 returns to step U8 and repeats the process on the condition that the comparison voltage value is larger than the monitoring voltage detection value. However, if the comparison voltage value is equal to or less than the monitoring voltage detection value, step U11 described later is performed. Move to and process.

  FIG. 7A schematically shows the comparison processing state shown in these steps U7 to U10. As shown in FIG. 7A, when the address of the ROM address to be referred (current) increases sequentially from the address “A000H”, the “comparison voltage value” decreases in order. For example, if the monitored voltage detection value is 2.45 V, the comparison voltage value becomes larger than the monitored voltage detection value when the value of “ROM address (current)” shifts to the address “A005H”. As shown in FIG. 7B, the address value indicated by “ROM address (current)” is set to “A005H”.

  As shown in FIG. 1, thereafter, in step U <b> 11, the control unit 2 performs “ROM address (last time before)”, “ROM address (last time before)”, “ROM address (previous time)”, and “ROM address (current)”. The address update control for sequentially updating the address values indicated by is performed. Specifically, the value of “ROM address (previous time)” is assigned to “ROM address (previous time)”, and the value of “ROM address (previous time)” is assigned to “ROM address (previous time)”. The value of “ROM address (current)” is replaced with “ROM address (previous)” and updated (see the arrow in the status column in FIG. 8C).

  Next, as shown in FIG. 1, the control unit 2 performs standby time update control in which the standby time value stored in the address indicated by “ROM address (current)” is substituted for “waiting time value” (U12). The waiting time counting is started using the waiting time count variable value (U13), and the voltage monitoring control is exited. After that, the voltage monitoring control in step S3 shown in FIG. 5 is shifted to the normal operation control in step S2, and counting is performed until the “waiting time value” is reached. For example, if the address value indicated by “ROM address (current)” is set to “A005H” at this time, the voltage is set to 2.4 V. Therefore, as shown in FIG. As the “time value”, 5 seconds corresponding to the voltage of 2.4 V are set as the “waiting time value”, and counting is performed until this “waiting value” is reached.

  Such normal operation control (S2) and voltage monitoring control (S3) are repeatedly performed. If the power consumption of the battery 7 is intense according to the power consumption of the liquid crystal display unit 4 and the liquid crystal backlight 5 of the air conditioning controller 1, the voltage across the battery 7 decreases. Then, the monitoring voltage detection value of the battery 7 also decreases.

  FIG. 8D shows an example of the status when the battery 7 is heavily consumed. As shown in FIG. 8D, the reference addresses of “ROM address (previous)”, “ROM address (previous)”, and “ROM address (previous)” are “A002H”, “A005H”, and “A008H”, respectively. ", The difference between the address values is" 3 ", which is a constant value. In this case, in the voltage monitoring control routine of FIG. 1, the control unit 2 determines that the condition indicated by step U7 is satisfied.

  When it is determined that the condition shown in step U7 is satisfied (U7: YES), the control unit 2 sets {“ROM address (previous)” − “ROM address (previous)”} to “ROM address (previous)”} The address value added with is substituted for “ROM address (current)” (U14).

  FIG. 8D shows an assignment image of “ROM address (current)” when this condition is satisfied. As shown in FIG. 8D, the address value of “ROM address (current)” is set to “A00BH” obtained by adding “3” to “A008H” that is the value of “ROM address (previous)”. Is done. That is, the voltage set to “A00BH” is directly referred to without referring to the voltages set to “A009H” and “A00AH”. Next, the control unit 2 substitutes the data stored in the address indicated by “ROM address (current)” for the comparison voltage value (U15), and whether or not the comparison voltage value exceeds the monitored voltage detection value. Is determined (U16).

  When the comparison voltage value exceeds the monitored voltage detection value, the control unit 2 adds 1 (value n indicating an equal interval) to “ROM address (current)” and sets the comparison voltage value in step U15. The data stored in the address indicated by “ROM address (current)” is substituted, and the process is repeated until the value is equal to or lower than the monitored voltage detection value (U15 to U17). Then, since the voltages set to “A009H” and “A00AH” are not referred to, the reference address can be quickly set as compared with the procedure shown in FIG. 8C (the procedure for sequentially referring to the address value). . Thereafter, the control unit 2 performs the processing of steps U11 to U13, and then exits voltage monitoring control and shifts to normal operation control. Such voltage monitoring control is repeatedly performed in the middle of normal operation control, so that the processing can be continued, and the voltage of the battery 7 is monitored by issuing a warning when the monitored voltage detection value is smaller than the threshold voltage. be able to.

  According to the present embodiment, in the initial setting control, the control unit 2 controls to turn on a monitoring flag indicating whether or not to perform voltage monitoring control (T1), “ROM address (two times before last)”, “ One of the addresses where the voltage value stored in the memory 2d is stored in "ROM address (previous times)" among "ROM address (previous times)", "ROM address (previous times)", and "ROM address (current times)". The smallest address value (A000H) is substituted, and the next smallest address value (A001H) next to “ROM address (previous times)” as well as “ROM address (previous times)” to “ROM addresses (previous times)” ) Is substituted, and “ROM address (previous)” is substituted with the next smaller address value (A002H) after “ROM address (previous)” in the same manner as “ROM address (previous)”, and “ROM address (current)”. To “Rom Address Subsequent to “ROM address (previous)”, the next smaller address value (A003H) is substituted (T2) and stored in the address indicated by “ROM address (current)” as “waiting time value”. A waiting time value (for example, 5 seconds) is substituted (T6), and waiting time counting is started using a waiting time count variable value (T7).

  Further, in the voltage monitoring control, the control unit 2 is in an ON state (U1: ON) indicating that the monitoring flag indicating whether or not to perform the voltage monitoring control is performed during the operation of the normal operation control unit. And the battery voltage detection unit 6 is operated on the condition that the count value of the waiting time count is larger than the waiting time value (U2: YES), and the current voltage value of the battery 7 is detected as the monitoring voltage detection value. (U3) is acquired, and control is performed to compare the threshold voltage indicating the minimum voltage necessary for operating the air-conditioning controller 1 held in advance with the monitored voltage detection value (U4). Is lower than the threshold voltage, the monitoring flag is turned off and control is performed to notify that the detected voltage detection value is smaller than the threshold (U5).

  When the monitored voltage detection value is equal to or greater than the threshold, the control unit 2 generates a value (first address number) obtained by subtracting “ROM address (previous)” from “ROM address (previous)”, and generates “ROM address ( A value (second address number) obtained by subtracting “rom address (previous time)” from “previous times” is generated, and control is performed to compare the first address number and the second address number (U7). If the number of addresses is the same as the number of second addresses, the value of “ROM address (previous)” and the value obtained by adding the number of first addresses are substituted for “ROM address (current)”. The voltage value stored at the address indicated by “” is set as a call comparison voltage value, and the comparison voltage value is compared with the monitored voltage detection value (U16).

  When the comparison voltage value is larger than the monitored voltage detection value (U16: YES), the control unit 2 performs processing for adding 1 (value n indicated by an equal interval) to “ROM address (current)”. The voltage value stored in the address indicated by “ROM address (current)” is set again as a call comparison voltage value, and control for comparing the comparison voltage value with the monitored voltage detection value is performed for the comparison. Control is repeated until the voltage value is equal to or lower than the monitored voltage detection value (U15 to U17).

  When the monitored voltage detection value is equal to or higher than the comparison voltage value (U16: NO), the control unit 2 substitutes the value of “ROM address (previous times)” into “ROM address (previous times)” Address update control that assigns the value of “ROM address (previous)” to “address (previous)” and the value of “ROM address (current)” to “ROM address (previous)”, and “ROM address (current)” The standby time update control for substituting the standby time value stored at the address indicated by "" into the standby time value is performed (U11).

  On the other hand, when the first address number and the second address number are not the same in step U7 (U7: NO), the control unit 2 sets the value of “ROM address (previous)” to “ROM address (current)”. A value obtained by adding 1 (value n indicating an equal interval) is substituted (U8), and the voltage value stored in the address indicated by “ROM address (current)” is set as a call comparison voltage value (U9). Control for comparing the comparison voltage value with the monitored voltage detection value is performed (U10).

  Subsequently, when the comparison voltage value is larger than the monitored voltage detection value (U10: YES), the control unit 2 adds 1 (value n indicating an equal interval) from “ROM address (current)”. (U8), the voltage value stored at the address indicated by “ROM address (current)” is set again as a call comparison voltage value (U9), and the comparison voltage value is compared with the monitored voltage detection value. The control is repeated until the comparison voltage value becomes equal to or lower than the monitored voltage detection value (U8 to U10).

  Subsequently, when the monitored voltage detection value is equal to or higher than the comparison voltage value (U10: NO), the control unit 2 substitutes the value of “ROM address (previous times)” into “ROM address (previous times)”. Address update control (U11) that substitutes the value of “ROM address (previous)” for “ROM address (previous)” and substitutes the value of “ROM address (current)” for “ROM address (previous)”; Wait time update control (U12) is performed in which the wait time value stored at the address indicated by "ROM address (current)" is substituted for the wait time value. After the wait time update control, the wait time count value is again set. Control is started to start counting from zero (U13).

  In short, the control unit 2 subtracts “rom address (previous)” from “rom address (previous)” and a value obtained by subtracting “rom address (previous)” from “rom address (previous)”. If these are the same, add the value of “ROM address (previous)” and {“ROM address (previous)”-“ROM address (previous))” to “ROM address (current)” The voltage value stored at the address indicated by “ROM address (current)” is called and set as a comparison voltage value, and the comparison voltage value is compared with the monitored voltage detection value. Therefore, the comparison process can be performed by skipping the reference address, and it is not necessary to monitor the remaining amount of the battery 7 more than necessary, and the remaining amount of the battery 7 can be monitored efficiently.

  That is, the degree of decrease of the previous ROM address (the value obtained by subtracting “ROM address (previous)” from “ROM address (previous)”) is the previous decrease degree (“ROM address (previous)”). If it is the same as the value obtained by subtracting “rom address (2 times before last)”, the comparison is performed by skipping the ROM address to be referred to. Power consumption can be reduced, and the power required for the control of the original air conditioner and the power used for power monitoring are efficient monitoring control for the air conditioning controller 1 that is consumed from the same battery 7.

  On the other hand, if the degree of decrease of the previous ROM address to be referenced is different from the previous decrease degree, the ROM address is referred to one by one and compared, so even if a sudden drop in the monitoring voltage occurs be able to. Even if the degree of decrease is different, if the degree of decrease is the same again, comparison is performed by skipping the referenced ROM address, so that efficient comparison can be performed again. become.

  Therefore, it is possible to efficiently perform the monitoring control even when the degree of decrease continues when the monitored voltage detection value gradually decreases, or when the degree of decrease continues when it rapidly decreases. As long as there is no change in the degree of decrease, the monitoring control can be performed efficiently from almost the first voltage monitoring control to the last voltage monitoring control. The electric power used for the air conditioning controller 1 consumed from the same battery 7 is very suitable.

  In the drawings, 1 is an air conditioning controller, 2 is a control unit (control means, initial setting control means, normal operation control means, voltage monitoring control means), 2a is a CPU, 2b is a RAM, 2c is a ROM (storage means), 2d is A memory (storage means), 3 is a key input unit, 4 is a liquid crystal display unit, 5 is a liquid crystal backlight, 6 is a battery voltage detection unit (voltage detection unit), and 7 is a battery (built-in power supply).

Claims (1)

An air conditioning controller that operates with a built-in power supply,
Voltage detection means for detecting the voltage value of the built-in power supply, storage means, and control means,
The storage means stores a plurality of different voltage values, one for each of the plurality of different voltage values, so that a high voltage value has a long time and a low voltage value has a short time. A plurality of associated waiting time values are stored at equal intervals so that those indicating a high voltage value are addresses of a small address value and those indicating a low voltage value are addresses of a large address value,
The control means includes an initial setting control means that operates at startup and performs initial setting, a normal operation control means that operates after the initial setting control means operation and controls air conditioning, and a voltage value detected by the voltage detection means, Voltage monitoring control means for monitoring the voltage value of the built-in power supply based on the voltage value and standby time value stored in the storage means,
The initial setting control means is a ROM address among the ROM addresses (previous times), ROM addresses (previous times), ROM addresses (previous times), and ROM addresses (current) which are variables used in the voltage monitoring control means. Substitute the smallest address value among the addresses where the voltage value stored in the storage means is stored in the address (previous times), and the roam address (previous times) in the same manner as the roam address (previous times) Subsequent to the ROM address (previous times), the next smallest address value is substituted. Similarly to the ROM address (previous times), the next smaller address value is substituted for the ROM address (previous times). In the same way as the ROM address (previous), the next smaller address value is substituted for the address (current), and the address indicated by the ROM address (current) is assigned to the waiting time value. Stored by substituting the waiting time value and performs control for starting the latency count using a latency count variable value, it controls the monitoring flag indicating whether to perform voltage monitoring control ON to,
The voltage monitoring control means is in an ON state indicating that the voltage monitoring control is performed during the operation of the normal operation control means, and indicates that the voltage monitoring control is performed. On condition that the count value is larger than the waiting time value,
Operate the voltage detection means, perform control to acquire the current voltage value of the built-in power supply as a monitoring voltage detection value,
Performing control to compare with a threshold value indicating a minimum voltage necessary for operating the air conditioning controller that holds the monitoring voltage detection value in advance;
When the monitoring voltage detection value is smaller than the threshold value, the control flag is turned off and the control for notifying that the monitoring voltage detection value is smaller than the threshold value is performed.
If the detected voltage detection value is equal to or greater than the threshold value, the first address number is generated by subtracting the ROM address (previous) from the ROM address (previous), and the ROM address (previous) is calculated from the ROM address (previous). Subtract to generate a second address number, and control to compare the first address number and the second address number,
When the first address number and the second address number are the same, the value obtained by adding the value of the ROM address (previous) and the first address number to the ROM address (current) is substituted, and the ROM address (current) is The voltage value stored at the address shown is called and set as a comparison voltage value, and the comparison voltage value is compared with the monitored voltage detection value, and the comparison voltage value is detected by the monitored voltage value. If the value is larger than the value, the same value as the value indicated by the equal interval is added to the ROM address (current), and the voltage value stored in the address indicated by the ROM address (current) is called again for comparison voltage. A control for setting the comparison voltage value and the monitoring voltage detection value is repeated until the comparison voltage value is equal to or lower than the monitoring voltage detection value, and the monitoring voltage detection value is compared with the comparison voltage value. If the value is higher than the voltage value, the value of the ROM address (previous) is assigned to the ROM address (previous), the value of the ROM address (previous) is assigned to the ROM address (previous), and the value of the ROM address (previous) is assigned. Perform address update control to assign the value of the ROM address (current) and wait time update control to assign the wait time value stored in the address indicated by the ROM address (current) to the wait time value,
When the first address number and the second address number are not the same, a value obtained by adding the value of the ROM address (previous) and the value indicated by the equal interval to the ROM address (current) is substituted, and the ROM address (current) ), The voltage value stored at the address indicated by () is called and set as a comparison voltage value, and the comparison voltage value and the monitored voltage detection value are compared, and the comparison voltage value is the monitor voltage. If it is larger than the voltage detection value, the addition process is performed for the same value as the value indicated by the equal interval from the ROM address (current), and the voltage value stored at the address indicated by the ROM address (current) is called again for comparison. The control is set as a voltage value, and the control for comparing the comparison voltage value with the monitoring voltage detection value is repeated until the comparison voltage value is equal to or lower than the monitoring voltage detection value. If the voltage value is greater than the comparison voltage value, the ROM address (previous times) is assigned to the ROM address (previous times), the ROM address (previous times) is assigned to the ROM address (previous times), and the ROM address (previous times) is assigned. Address update control that assigns the value of the ROM address (current) to the previous) and standby time update control that substitutes the wait time value stored in the address indicated by the ROM address (current) for the wait time value,
An air-conditioning controller which performs control to start counting the count value of the waiting time count from zero again after the waiting time update control.

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