JPH0518590A - Environment state detector for air conditioner and centralized control system - Google Patents

Abstract

PURPOSE:To measure an environment state with a plurality of types of sensors and one detector by inputting an output signal of a sensor for detecting an environment state, setting the type of the sensor, amplifying the output signal of the sensor, converting it to a measured value, and transmitting it to an air conditioner or a central unit. CONSTITUTION:A sensor 1 for detecting environment states such as a temperature, a humidity, an air stream, etc., is connected to a sensor input unit 2 of an environment state detector 7, types of the sensors are set by a setter 6, an amplification factor of a sensor signal amplifier 3 is switched according to its content, and input to a controller 4. It is A/D-converted, a digital value is compared with sensor signal/measured value conversion data 5 of the sensor type set by the setter 6 to decide a measured value. For example, the temperature sensor signal/measured value conversion data is compared with the A/D- converted digital temperature sensor signal value to obtain a measured value. In the case of the temperature sensor, it is similarly obtained, the measured value obtained by altering the setting and the sensor type are transmitted by a transmitter 8 to a central unit 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an environmental condition detecting device and a centralized system required for controlling an air conditioner.

[0002]

2. Description of the Related Art FIG. 3 shows, for example, JP-A-64-38545.
FIG. 1 is a conventional centralized control system for an air conditioner disclosed in Japanese Patent Laid-Open Publication No. JP-A-2003-163, in which 30 is an outside air temperature sensor, 31 is a means for detecting the outside air temperature from an outside air temperature sensor signal, 32
Means for sending the detected outside air temperature to the central unit 33, 3
Reference numeral 4 is an indoor temperature sensor, 35 is means for detecting the indoor temperature from the indoor temperature sensor signal, 36 is means for connecting the central device 33 to the central data transmission line 37, and means for inputting outside air temperature information from the central device 33, and 38 is external air. Reference numeral 39 is a means for judging whether to perform outside air cooling based on the temperature and the room temperature, and 39 is means for sending an execution command for outside air cooling. Further, 40 is a control device of the interior air conditioner 41, 42 is a controller of the perimeter air conditioner 43, and the control device 40 and the controller 42 are connected by a data transmission line 44.

FIG. 4 shows a conventional environmental management information transmitting device disclosed in Japanese Patent Laid-Open No. 1-169257, in which 50 is a sensor for detecting environmental conditions such as temperature, humidity and CO ₂ concentration. Reference numeral 51 is an A / D conversion circuit that converts the signal of the sensor 50 into a digital signal, and 52 is an infrared data transmission unit that optically transmits the digital signal of the sensor as infrared data in the optical space. Reference numeral 53 is a battery that drives the environment management information transmitter 54.

Next, the operation of the centralized control system of the air conditioner will be described. The indoor temperature sensor 34 installed in the interior air conditioner 41 and the indoor temperature detecting means 3
5. Measure the room temperature according to 5. Also, the outside air temperature sensor 3
0 and the outside air temperature detecting means 31 measure the outside air temperature,
The outside air temperature sending means 32 is used to transmit the outside air temperature to the central device 33 and the control device 40 of the interior air conditioner 41. The control device 40 determines whether the outside air cooling determination means 38 performs the outside air cooling based on the outside air temperature from the central device 33 and the measured indoor temperature. When executing the outside air cooling, the outside air cooling command sending means 39 sends an outside air cooling command to the controller 42 of the perimeter air conditioner 43 to perform the outside air cooling.

Next, the operation of the environment management information transmitter will be described. The signal of the sensor 50, which is installed inside the environment management information transmitter 54 and detects environment management information such as indoor temperature, radiant heat, humidity, air flow, time, and gas concentration, is digitally converted by the A / D conversion circuit 51. Then, the infrared data transmission unit 52 modulates the digital signal and transmits it as an infrared signal to a reception terminal (not shown).

[0006]

Since the conventional centralized control system for an air conditioner is configured as described above, only specific environmental information such as outside air humidity and room temperature is stored in the central unit as environmental information. I can't measure. Moreover, in order to measure other environmental information by the central device, there is a problem that it is necessary to newly provide a detecting means and a transmitting means for each sensor.

Further, since the conventional environment management information transmitting apparatus is constructed as described above, only a sensor of a size which can be housed in the apparatus and which has a clear conversion from the sensor output value to the measured value is used. When a new sensor which can be used and has a different output value is attached, there is a problem that the apparatus main body needs to be improved including replacement of the A / D conversion circuit.

The present invention has been made in order to solve the above-mentioned problems, and in one environmental state detecting device,
By changing the settings, multiple types of environmental information can be measured and transmitted to the central unit, and even if a new environmental detection sensor with different output values and environmental measurement by an environmental measuring machine that cannot be installed at all times is installed, the sensor can be installed in the central unit. It is an object of the present invention to provide a device that transmits a signal and detects an environmental condition in a central device.

[0009]

[Means for Solving the Problems] Claim 1 according to the present invention
The air conditioner environmental condition detection device includes a sensor signal input unit that captures an output signal of a sensor that detects an environmental condition, a setting unit that sets the type of the sensor, and a sensor signal amplifier that amplifies the output signal of the sensor. And a control unit for converting the sensor signal amplified by the sensor signal amplification unit into a measurement value, and a transmission unit for transmitting the measurement value converted by the control unit to an air conditioner or a central device.

According to a second aspect of the present invention, there is provided a centralized control system for an air conditioner comprising: a new environmental sensor for detecting an environmental condition; a general-purpose input section for connecting the new environmental sensor; and a type of the general-purpose input section. A setting unit for setting, a sensor signal amplifier for amplifying the signal of the new environment sensor, a sensor signal amplifier for converting the amplified sensor signal into a digital signal, and a digital signal converted by the controller. And a sending unit for sending the sensor signal to the central device, and the central device converts the sensor signal sent from the sending unit into a measurement value.

[0011]

The environmental condition detecting device for an air conditioner according to claim 1 of the present invention can measure a plurality of types of sensors with one environmental condition detecting device.

In the centralized control system for an air conditioner according to a second aspect of the present invention, even when a new sensor or environment measuring device is used, the sensor signal is input to the existing environment state detecting device and the sensor signal is input to the central device. / By inputting the measured value conversion data, it is possible to measure the environment in the central unit.

[0013]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a sensor that detects environmental conditions such as temperature, humidity, air flow, and gas concentration, 2 is a sensor input unit that inputs the signal of the sensor 1, and 3 is a sensor signal that amplifies a minute signal of the sensor 1. The amplification unit 4 performs A / D conversion on the amplified sensor signal, and compares the converted digital value with the sensor signal / measurement value conversion data 5 of each sensor that has been already stored, and converts it into a measurement value. 6 is a setting unit for setting the type of sensor connected to the environmental condition detection device 7,
Reference numeral 8 denotes a transmission unit that transmits the measured value and the sensor type converted by the control unit to the central device 10 via the central data transmission line 9.

A sensor 1 for detecting environmental conditions such as temperature, humidity, air flow and gas concentration is connected to a sensor input section 2 of an environmental condition detecting device 7. Further, since the output signal of each sensor is different for each sensor, the type of connected sensor is set by the setting unit 6 configured by, for example, a bit switch or the like. The sensor signal amplifying unit 3 depends on the contents set by the setting unit 6.
By switching the amplification factor of, the analog sensor signal amplified to 0 to 5 V is taken into the control unit 4 which is composed of, for example, a microcomputer with an 8-bit A / D circuit. The control unit 4 A / D converts the analog sensor signal amplified to 0 to 5 V, and the conversion compares the digital value with the sensor signal / measurement value conversion data 5 of the sensor type set in the setting unit 6. Then, determine the measured value. The control unit 4 stores sensor signal / measurement value conversion data 5 for each sensor type. For example, when the sensor type set by the setting unit 6 is a temperature sensor, temperature sensor signal / measurement value conversion data is stored. Is compared with the A / D converted digital temperature sensor signal value to obtain 25 ° C. as a measured value. Similarly, in the case of a humidity sensor, the humidity sensor signal / measured value conversion data is compared with the digital humidity sensor signal value to obtain 60% RH as the measured value. In this way, concrete measurement values and sensor types (temperature 25 ° C, humidity 60) obtained by changing the settings of the setting unit
% RH) is sent from the transmitter 8 to the central unit 10 via the central data transmission line 9.

Example 2. Next, another embodiment of the present invention is shown in FIG. In FIG. 2, 11 is an environment measuring instrument with an external output terminal or a new environment sensor. The configuration of the environmental condition detection device 7 is the same as that of the first embodiment, but is configured by a general-purpose input unit 12 as a part of the sensor input unit 2 and a general-purpose sensor amplification unit 13 as a part of the sensor signal amplification unit 3. . Further, reference numeral 14 is sensor signal / measurement value conversion data of the environment measuring machine with an external output terminal or the new environment sensor 11, which is inputted to the central unit 9.

There are various output signals of the environment measuring instrument with an external output terminal or the new environment sensor 11, for example, 0 to 1
Since there are voltage output types such as V and 0 to 5 V and current output types such as 4 to 20 mA, they are connected to the general-purpose input unit 12. Depending on the type of sensor (type of output signal) connected,
For example, the setting unit is set as a voltage output type of 0 to 1V. The general-purpose sensor amplifying unit 13 of the sensor signal amplifying unit 3 outputs, for example, the sensor signal from 0 to 1V according to the set voltage output type of 0 to 1V.
The signal is amplified to a 5V analog signal and input to the control unit 4. In the control unit 4, the amplified analog sensor signal is A / D converted, and the digital sensor signal and the type of the sensor output signal of 0 to 1V voltage output type are transmitted from the transmission unit 8 via the central data transmission line 9. And transmits it to the central unit 10. The central device 10 collects the types of sensor signals and sensor output signals from the respective environmental condition detecting devices 7. On the other hand, the sensor signal / measurement value conversion data 14 of the environment measuring machine with an external output terminal or the new environment sensor 11 is input to the central device 10, and the sensor signal from each environmental condition detecting device 7 and the type of the sensor output signal are input. And the measured value is obtained by the central device 10. As a result, even when the environment measuring machine with an external output terminal or the new sensor 11 is connected to the environmental condition detecting device 7, the sensor signal / measurement value conversion data 14 of the environment measuring machine with an external output terminal or the new sensor 11 is transmitted. By inputting to the central device 9, the measured value of the environmental information can be obtained.

[0017]

The present invention has the following effects.
The environmental condition detection device for an air conditioner according to claim 1, wherein a sensor signal input unit that captures an output signal of a sensor that detects an environmental condition, a setting unit that sets the type of the sensor, and an output signal of the sensor are amplified. A sensor signal amplification unit, a control unit that converts the sensor signal amplified by the sensor signal amplification unit into a measurement value, and a transmission unit that transmits the measurement value converted by this control unit to an air conditioner or a central device. Since the configuration is provided, it is possible to measure a plurality of types of sensors with one environmental condition detection device.

According to a second aspect of the present invention, there is provided a centralized control system for an air conditioner, which comprises a new environmental sensor for detecting an environmental condition, a general-purpose input section for connecting the new environmental sensor, and a setting section for setting the type of the general-purpose input section. A sensor signal amplifier that amplifies the signal of the new environment sensor; a sensor signal amplifier that converts the amplified sensor signal into a digital signal; and a sensor signal that is digitalized by the controller. Since the central device is configured to convert the sensor signal sent from the sending part into a measured value, the central device has a sending part for sending to the central device. By inputting the sensor signal in the environmental condition detecting device and the sensor signal / measured value conversion data in the central device, the central device can measure the environment.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an environmental condition detecting device for an air conditioner according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a centralized control system for an air conditioner according to another embodiment of the present invention.

FIG. 3 is a block diagram of a conventional centralized control system for an air conditioner.

FIG. 4 is a configuration diagram of a conventional environment management information transmission device.

[Explanation of symbols]

1 sensor 2 sensor input section 3 Sensor signal amplifier 4 control unit 5 setting section 8 transmitter 10 Central device 11 New environmental sensor

Claims (2)

[Claims] 1. A sensor signal input section for taking in an output signal of a sensor for detecting an environmental condition, a setting section for setting a type of the sensor, a sensor signal amplifying section for amplifying an output signal of the sensor, and the sensor signal. Environmental condition of an air conditioner including a control unit that converts the sensor signal amplified by the amplification unit into a measurement value, and a transmission unit that transmits the measurement value converted by this control unit to an air conditioner or a central device Detection device. 2. A new environmental sensor for detecting an environmental condition,
A general-purpose input unit for connecting the new environment sensor, a setting unit for setting the type of the general-purpose input unit, a sensor signal amplification unit for amplifying a signal of the new environment sensor, and a sensor signal amplification unit for the amplified sensor. A control unit for converting the signal into a digital signal and a sending unit for sending the sensor signal digitized by the control unit to a central device are provided, and the central device receives the sensor signal sent from the sending unit. Centralized control system for air conditioners, characterized by converting measured values.