JP2006343007A - Ventilation interlocking system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation interlocking system capable of being installed at a place of high infrared ray signal reception level, and confirming the lowering of the reception level when it is lowered. <P>SOLUTION: A ventilating device 6 has a level detecting means 10 for detecting a light reception level of an infrared ray signal received by an infrared ray signal receiving means 7, a storing means 11 for storing the light reception level detected by the level detecting means 10, and a notifying means 13 for comparing the light reception level stored in the storing means 11 in advance with the light reception level newly detected by the level detecting means 10, and giving notification when the light reception level newly detected is smaller than the light reception level stored in the storing means 11 by more than a prescribed value. Thus the fact that the light reception level of the infrared ray signal is more than the prescribed value can be confirmed before installing the system, and the lowering of the light reception level of the infrared ray signal can be notified, when the light reception level is lowered during use. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a ventilation interlocking system that interlocks with a heating device used in a home or business kitchen.

  Conventionally, this kind of ventilation interlocking system is already known (for example, refer to patent documents 1).

  FIG. 6 shows the configuration of the heating device 101 that performs cooking and the like, a heating unit 102 that heats a pan or the like using gas or induction heating as a heat source, a heating control unit 103 that controls the heating unit 102, Operation unit A104 for operating heating device 101 and infrared signal transmission unit 105 for transmitting a control signal by infrared rays are provided. The ventilator 106 also includes an infrared signal receiving means 107 that receives the infrared signal transmitted by the infrared signal transmitting means 105, a fan 109 for performing ventilation, a fan control means 108 for controlling the fan 109, and ventilation. And operating means B114 for operating the device 106.

When heating by the heating unit 102 is started by the operation unit A104 of the heating device 101, a signal for controlling the fan 109 of the ventilation device 106 is transmitted from the infrared signal transmission unit 105 in conjunction with the heating. When the infrared signal receiving means 107 receives the signal, a signal is sent to the fan control means 108 so that the user drives the fan 109 of the ventilator 106 at a predetermined rotation without operating the operation means B114 of the ventilator 106. The fan 109 is rotated at a predetermined number of rotations for ventilation. Similarly, when heating by the heating means 102 is stopped by the operating means A104, an infrared signal is sent from the infrared signal transmitting means 105 to the ventilator 106, and the fan 109 of the ventilator 106 stops or stops after a predetermined time. Become. Further, the operating means A104 also has a function of controlling the fan 109 in the same manner as the operating means B114 of the ventilation device 106. It is also possible to send a signal to control and send a signal from the infrared signal transmitting means 105.
JP 2003-343854 A

  However, in the conventional configuration, since the heating device 101 that is the infrared signal transmitting side and the ventilation device 106 that is the receiving side are installed in a limited place such as a kitchen, the infrared signal transmitted from the infrared signal transmitting means 105 is transmitted. There are cases where it cannot be installed in a place where the signal reception level is good, but this cannot be recognized. In addition, there is a problem that even if the reception level of the infrared signal decreases during use, this cannot be recognized.

  The present invention solves the above-described conventional problems, and when the system is installed, it can be installed in a place where the reception level of the infrared signal is good, and the infrared reception level is lowered during use. An object of the present invention is to provide a ventilation interlocking system that can recognize this.

  In order to solve the above-described conventional problems, a ventilation interlock system according to the present invention is detected by a level detection unit that detects a received light level of an infrared signal received by an infrared signal reception unit and a level detection unit. The storage means for storing the received light level is compared with the light reception level previously stored in the storage means and the light reception level newly detected by the level detection means, and is newer than the light reception level stored in the storage means. And an informing means for informing when the detected light receiving level is lower than a predetermined level.

  As a result, it is possible to confirm that the received light level of the infrared signal is equal to or higher than a predetermined level before installing the system. It is possible to judge and treat whether it is an influence by an obstacle.

  The ventilation interlocking system of the present invention can confirm that the received light level of the infrared signal is equal to or higher than a predetermined level before installing the system, and can notify when the received light level of the infrared signal is lowered during use. .

  1st invention is equipped with the heating apparatus which has a heating means and an infrared signal transmission means, the infrared signal reception means which receives the infrared signal from an infrared signal transmission means, and the ventilation apparatus which has a fan driven by this signal, The ventilator is stored in advance in a level detection means for detecting the light reception level of the infrared signal received by the infrared signal reception means, a storage means for storing the light reception level detected by the level detection means, and a storage means. A light receiving level that is newly detected by the level detecting means, and a notifying means for notifying when the newly detected light receiving level is smaller than a predetermined light receiving level than the light receiving level stored in the storage means. By using a ventilation-linked system, it is possible to confirm that the received light level of the infrared signal is higher than a predetermined level before installing the system. By informing it if the light receiving level of the infrared signal is lowered during use, it is possible to fail or the system determines and whether affected by obstacles treatment.

  In the second invention, in particular, in the first invention, the light reception level stored in advance in the storage means can be arbitrarily set by a predetermined operation, so that it can be arbitrarily set after confirming various reception levels at the time of system installation or the like. The initial value can be stored and set, and the correct received light level can be set as the initial value.

  In the third invention, in particular, in the first or second invention, the light reception level stored in advance in the storage means is the light reception level of the infrared signal first received by the infrared signal receiving means after the first power-on. Since the infrared signal reception level is automatically stored, it is not necessary for the user or the installer to learn the reference infrared signal reception level.

  According to a fourth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the storage means includes a non-volatile storage device, so that the initial infrared signal can be generated even when the power supply of the ventilator is shut off. The reception level can be continuously stored.

  The fifth aspect of the invention is particularly used in any one of the first to fourth aspects of the invention, wherein the ventilator is provided with a level display means for displaying the received light level of the infrared signal detected by the level detection means. The user can visually confirm the light reception level, easily determine that the light reception level has fallen, etc., find the place with the best light reception level in the temporary installation state, and not notify by the notification means In both cases, it is possible to determine a decrease in the received light level.

  In a sixth aspect of the invention, in particular, in any one of the first to fifth aspects of the invention, the heating device usually has at least two or more infrared signal transmitting means for transmitting the same infrared signal at the same time. The output from the plurality of infrared signal transmission means can be individually transmitted, so that when the light reception level of the ventilator is lowered, the signals from the plurality of infrared signal transmission means can be transmitted individually, that is, independently. Therefore, it is possible to easily identify which infrared signal transmission means is out of order or which infrared signal transmission means is on the transmission path from which infrared signal transmission means.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
FIG. 1 shows a ventilation interlocking system according to an embodiment of the present invention.

  As shown in the figure, a heating apparatus 1 for cooking or the like operates a heating means 2 for heating a pan or the like using gas or induction heating as a heat source, a heating control means 3 for controlling the heating means 2, and the heating apparatus 1. It has operation means A4 and infrared signal transmission means 5 for transmitting a control signal by an infrared signal.

  In addition, the ventilation device 6 includes an infrared signal receiving unit 7 that receives the infrared signal transmitted by the infrared signal transmitting unit 5, a fan control unit 8, a fan 9 that is controlled and driven by the fan control unit 8 and performs ventilation. Level detection means 10 for detecting the light reception level of the infrared signal received by the infrared signal reception means 7, storage means 11 for storing the light reception level of the infrared signal detected by the level detection means 10, and storage in the storage means 11 in advance. The comparison means 12 for comparing the received light reception level with the light reception level of the infrared signal newly detected by the level detection means 10 and the light reception level of the infrared signal newly received by the comparison means 12 are stored in the storage means 11. A notification means 13 for giving a warning by sound, sound, light sound, or a combination thereof when the received light level is smaller than a predetermined value or more than the light reception level stored in And an operation unit B14 for operating the location 6.

  Hereinafter, a series of operations of the ventilation interlocking system will be described.

  When heating by the heating unit 2 is started by the operation unit A4 of the heating device 1, an infrared signal for controlling the fan 9 of the ventilation device 6 is transmitted from the infrared signal transmission unit 5 in conjunction with the heating. When the infrared signal receiving means 7 receives the signal, a signal is sent to the fan control means 8 so that the user drives the fan 9 of the ventilator 6 at a predetermined rotation without operating the operating means B14 of the ventilator 6. Then, the fan 9 rotates at a predetermined rotational speed to perform ventilation. Similarly, when heating by the heating means 2 is stopped by the operation means A4, an infrared signal is sent from the infrared signal transmission means 5 to the ventilator 6, and the fan 9 of the ventilator 6 stops or stops after a predetermined time. Become.

  Further, the operation means A4 has a function of controlling the fan 9 in the same manner as the operation means B14 of the ventilator 6. The operation means A4 controls the infrared signal transmitting means 5 to rotate the fan 9 of the ventilator 6. It is also possible to send a signal to control and send a signal from the infrared signal transmitting means 5.

  Next, the circuit configuration of the infrared signal transmission means 5 and the form of the transmission signal and the reception signal will be described with reference to FIGS.

  In FIG. 2, an infrared signal transmission means 5 outputs infrared LEDs 15a and 15b that emit infrared rays, transistors 16a and 16b that drive the infrared LEDs 15a and 15b on and off, and control signals for the ventilator 6. It has signal generation means 17 for generating a pulse. Further, the signal generating means 17 drives the infrared LEDs 15a and 15b simultaneously in order to increase the amount of infrared light to be transmitted. The control signal of the ventilator 6 generated by the signal generating means 17 has a signal form in accordance with the format of the home electric appliances association (hereinafter referred to as home-made cooperative format), and the subcarrier uses 36.7 kHz. As shown in FIG. 3, it is a signal corresponding to “0” and “1” at the beginning and end trailers of the transmission signal. Further, the light receiving portion of the infrared signal receiving means 7 is demodulated via a band pass filter, so that the received signal in which the H (high) and L (low) of the transmission signal are reversed as shown in FIG. Yes.

  FIG. 4 shows the relationship between the received light level of the received signal received by the infrared signal receiving means 7 and the H / L pulse width of the received signal.

  The level detection means 10 detects the light reception level by lowering the light reception level so that the high level pulse width is longer and the low level pulse width is shorter (in the figure, the larger the numerical value is, the higher the light reception level is). . Then, the light receiving level detected by the level detecting means 10 is stored in the storage means 11 in advance. Further, the comparison means 12 compares the light reception level stored in advance in the storage means 11 with the light reception level of the infrared signal newly received this time, and when it is smaller than a predetermined level (in this embodiment, when it is smaller than two levels). In this case, a signal is sent to the notification means 13 and a warning notification is given by the notification means 13. Note that the data stored in the storage unit 11 is not updated when the received infrared light reception level is lowered. Here, since the heating device 1 and the ventilation device 6 are installed in a kitchen or the like and cannot be moved, and the current flowing through the infrared LEDs 15a and 15b does not change in the middle, it is normally detected by the level detection means 10. The received light level is almost the same, and when the received light level is lowered, it can be seen that the infrared signal transmitting means 5 is broken or there is an obstacle in the transmission path, and the received light level is lowered. Furthermore, when a warning is displayed on the notification means 13 only under specific conditions, it can be determined that the infrared signal is blocked by an obstacle.

  In the present embodiment, two infrared LEDs 15a and 15b are connected in parallel, but may be connected in series. Moreover, although the form of the infrared signal is a home-made cooperative format and the subcarrier is 36.7 kHz, the effect is the same in the format using other subcarrier frequencies.

  Further, the infrared light receiving level is stored in the storage means 11 by operating the operation means B14 of the ventilation device 6. As a result, the light reception level can be arbitrarily stored in the storage means 11, and the correct light reception level can be set as the initial value, so that the user can be notified when the light reception level is lowered, and the user can check whether there is an obstacle. By doing so, it can be determined whether the infrared signal transmitting means 5 is out of order. In addition, when an obstacle that cannot be removed after installation occurs, the reference light receiving level can be stored again, and it is possible to prevent the alerting means 13 from being inadvertently warned. Note that a dedicated switch may be provided in the operation unit B14 in order to store it in the storage unit 11 by the operation unit B14. However, since the switch is not frequently used, it can be substituted by pressing the switch normally used. As a result, there is no increase in space or cost.

  Further, the ventilator 6 stores the light receiving level of the signal first received by the infrared signal receiving means 7 in the storage means 11 after the first power-on. As a result, the reception level of the infrared signal is automatically stored, so that it is not necessary for the user or the installer to learn the reference infrared signal reception level.

  Further, the storage means 11 is composed of a nonvolatile storage device. Thereby, even when the power supply of the ventilator 6 is shut off, the initial infrared signal reception level can be stored without losing the received light level data stored in the storage means 11.

  FIG. 5 shows the ventilation device 6 with a level display means 18 added. The level display means 18 displays the light reception level of the infrared signal detected by the level detection means 10 so that the user can visually confirm the light reception level and easily determine whether the light reception level has decreased. In addition, it is possible to find a place with the best light reception level in the temporary installation state, and it is possible to determine a decrease in the light reception level without being notified by the notification means 13.

  Further, in the configuration of the infrared signal transmitting means 5 shown in FIG. 2, the signal generating means 17 normally drives the transistors 16a and 16b at the same time. However, the transistors 16a and 16b can be driven independently by the operation from the operating means A4. . Thereby, it is possible to easily identify which infrared signal transmission unit is out of order, or which infrared signal transmission unit the obstacle is in the transmission path. In order to drive the transistors 16a and 16b independently by the operation means A4, a dedicated switch may be provided in the operation means B14. However, since the switch is not frequently used, a plurality of normally used switches are provided. Substituting with push etc. will not lead to space and cost increase.

  Moreover, although the heating apparatus 1 of this Embodiment was set as the cooker which heats a pan etc. by using gas or induction heating as a heat source, in the case of the system which links an oven with a cooking chamber, a microwave oven, etc., and a ventilator. Has the same effect.

  As described above, the ventilation interlocking system according to the present invention can confirm that the infrared light reception level is higher than a predetermined level before installing the system, and if the infrared light reception level decreases during use, Therefore, the present invention can be applied to the determination of the installation location and the confirmation of failure in a system that performs communication using infrared signals.

The block diagram of the ventilation interlocking system in embodiment of this invention Configuration diagram of infrared signal transmission means in the ventilation-linked system Infrared signal transmission / reception signal diagram in the same ventilation interlocking system Correlation diagram of light reception level and pulse width of the infrared signal receiving means Configuration diagram showing another example of the ventilation interlocking system Configuration diagram of ventilation interlocking system in the conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating apparatus 2 Heating means 5 Infrared signal transmission means 6 Ventilation apparatus 7 Infrared signal receiving means 10 Level detection means 11 Storage means 13 Notification means 18 Level display means

Claims (6)

A heating device having a heating means and an infrared signal transmission means; an infrared signal reception means for receiving an infrared signal from the infrared signal transmission means; and a ventilator having a fan driven by the signal. A level detection means for detecting the light reception level of the infrared signal received by the signal reception means, a storage means for storing the light reception level detected by the level detection means, and a light reception level previously stored in the storage means The ventilation interlocking system which has a notification means which compares with the light reception level detected by the level detection means, and notifies when the light reception level newly detected is smaller than the predetermined light reception level than the light reception level stored in the storage means. The ventilation interlocking system according to claim 1, wherein the light reception level stored in advance in the storage means can be arbitrarily set by a predetermined operation. The ventilation interlocking system according to claim 1 or 2, wherein the light reception level stored in advance in the storage means is the light reception level of the infrared signal first received by the infrared signal reception means after the first power-on. The ventilation interlocking system according to any one of claims 1 to 3, wherein the storage means is a nonvolatile storage device. The ventilation interlocking system according to any one of claims 1 to 4, wherein the ventilation device includes level display means for displaying an infrared light reception level detected by the level detection means. The heating apparatus usually has at least two or more infrared signal transmitting means that simultaneously transmit the same infrared signal, and outputs from a plurality of infrared signal transmitting means can be individually transmitted by a predetermined operation. The ventilation interlocking system according to any one of 5.