JP4919440B2 - Glass system, processing device and program - Google Patents

Description

  The present invention relates to a glass system having a heat generation function, a processing apparatus, and a program.

  There has been proposed a plate glass in which a conductive member capable of generating heat by energization is formed on the surface (see Patent Document 1).

JP-A-11-173028

  The objective of this invention is providing the glass system, processing apparatus, and program which can improve the versatility of the processing apparatus which controls a glass system.

1. Glass system The glass system of the present invention comprises:
A glass body including a resistor;
A current measuring unit for measuring a current value of a current flowing through the resistor;
A temperature measuring unit for measuring the temperature of the glass body;
A storage unit storing temperature rising program data based on the size of the resistor;
Based on the current value measured by the current measuring unit and the temperature of the glass body measured by the temperature measuring unit, the processing unit for deriving the state of the glass body with reference to the temperature rise program data Including.

  According to the present invention, since the temperature rise program data based on the size of the resistor is included, it is not necessary to create a separate processing device for each size of the resistor, and the versatility of the processing device itself can be improved. .

  Further, when a predetermined current flows, if the predetermined temperature does not rise, it can be recognized that the temperature measuring unit is damaged. Therefore, it is easy to check the damaged state of the temperature measuring unit.

  In the present invention, the storage unit may have relationship data between a resistance value of the resistor and a size of the resistor. According to the present invention, the processing device can recognize the size of the resistor from the resistance value of the resistor, and the input operation of the size of the resistor can be omitted.

  In the present invention, the temperature measurement unit may be a thermocouple. Maintenance can be easily performed by using a thermocouple.

  In the present invention, a transmission / reception unit for connecting to a communication network may be included. Thereby, it is possible to promptly notify a person at a remote place such as a damaged state of the temperature measuring unit.

2. Processing apparatus The processing apparatus of the present invention
A processing apparatus for a glass system for deriving a state of a glass body including a resistor,
A storage unit storing temperature rising program data based on the size of the resistor;
Based on the current value measured by the current measurement unit and the temperature of the glass body measured by the temperature measurement unit, the state of the glass body is derived with reference to the temperature increase program data.

  According to the present invention, since the temperature rise program data based on the size of the resistor is included, it is not necessary to create a separate processing device for each size of the resistor, and the versatility of the processing device itself can be improved. .

  Further, when a predetermined current flows, if the predetermined temperature does not rise, it can be recognized that the temperature measuring unit is damaged. Therefore, it is easy to check the damaged state of the temperature measuring unit.

  In this invention, the said memory | storage part has the relationship data between the resistance value of the said resistor, and the magnitude | size of the said resistor. The processing device can recognize the size of the resistor from the resistance value of the resistor, and the input operation of the size of the resistor can be omitted.

3. Program The program of the present invention
On the computer,
Reading temperature rising program data based on the size of the resistor of the glass system from the storage unit;
Based on the temperature of the glass body that is measured by the current value and the temperature measuring unit measured by the current measuring unit, by referring to the temperature increase program data, for cause and a step of deriving the state of the glass body Is.

It is a figure which shows the structural example of a glass system typically. It is a figure which shows the functional block of a glass system typically. It is a flowchart of the processing flow of a glass system. It is a figure which shows the modification of a glass system typically. It is a figure which shows the modification of a glass system typically.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

1. Configuration of Glass System The glass system 100 includes a glass body 10 provided with a resistor 12, a temperature measuring unit 30 that measures the temperature of the glass body 10, and a current measurement that measures a current value of a current flowing through the resistor 12. And a processing device 20 for deriving the state of the glass body 10 based on the current value measured by the current measuring unit 32.

  The glass body 10 is heated by the resistor 12 when the resistor 12 generates heat by passing a current through the resistor 12. The resistor 12 can be composed of a film made of a conductive material. As the material of the conductive material, a metal such as copper or a metal acid additive such as ITO can be applied. The glass body 10 is provided with a plurality of electrodes (for example, two electrodes) 14 a and 14 b for allowing a current to flow through the resistor 12. The material of the glass body 10 is not specifically limited, A well-known thing can be applied. The glass body 10 can also be configured by bonding a plurality of glasses. In this case, from the viewpoint of protecting the electrodes 14a and 14b, glass can be bonded so as to sandwich the electrodes 14a and 14b. The glass body 10 may be not only a flat plate but also a cylindrical or hollow shape.

  The resistor 12 is provided between the electrodes 14a and 14b. The electrodes 14 a and 14 b can be provided on the side portions on both sides of the glass body 10. The shape of the electrodes 14a and 14b is not particularly limited as long as the function as an electrode can be realized. For example, the electrodes 14a and 14b can be provided linearly. The material of the electrodes 14a and 14b is not particularly limited as long as it can realize a function as an electrode, but can be made of a metal such as copper. A current is supplied from the power supply unit 40 to the electrodes 14a and 14b.

  The temperature measurement part 30 will not be specifically limited if it can measure the temperature of the glass body 10, For example, it can comprise with a thermocouple. When the temperature measurement unit 30 is made of a thermocouple, the vicinity of the tip may be attached to an adhesive body (such as a seal body) and attached to the glass through the adhesive body for ease of attachment. The temperature measurement unit 30 can be provided between the processing apparatus 20 and the amplifier A1.

  The current measuring unit 32 is not particularly limited as long as it can measure the current flowing between the plurality of electrodes 14a and 14b, and a known one can be applied. The current measurement unit 32 can be provided between the processing device 20 and the amplifier A2.

  The processing apparatus 20 controls components such as the power supply unit 40 and determines the state of the glass body 10 based on the current value measured by the current measurement unit 32 and the temperature of the glass body 10 measured by the temperature measurement unit 30. To derive. The processing device 20 can be realized by a control circuit including a CPU, a ROM, a RAM, and the like. The processing device 20 may be realized by a plurality of control circuits.

  The glass system 100 can further include the following components.

  In the glass system 100, a temperature setting switch 52 and a temperature display lamp 54 are connected to the processing apparatus 20 via an external terminal connection unit (for example, a photocoupler) 50. The temperature setting switch 52 is for changing the setting to the high temperature side or the low temperature side with respect to the set temperature of the glass body 10. The temperature display lamp 54 is a lamp (for example, a light emitting diode) that displays the degree of temperature change by the temperature setting switch 52.

  The AC / DC converter 44 converts the AC power supply of the power supply unit 40 into a DC power supply. The converted DC power supply path includes a path sent to the processing apparatus and a path sent to the DC / DC converter 46 and stepped up or down and sent to the processing apparatus 20.

  The storage unit 60 stores relation data between the resistor 12 and the resistance value, temperature increase program data corresponding to the size of the resistor 12, correspondence data between the current value and the resistance value, correspondence between the current value and the temperature change. Related data, the time to rise to the specified temperature after turning on the power, the time to drop to the prescribed temperature after turning off the power, the maximum temperature reached after the power is turned off, the temperature that is damaged when the power is turned on Corresponding data between the data current value such as the time from power-on to breakage and the temperature at which the glass body is heated is stored. The data in the storage unit 60 serves as basic data for deriving appropriate conditions for the control for increasing the temperature of the glass system 100 and the like. In particular, the temperature raising program data is given conditions for raising the temperature according to the size and thickness of the resistor 12, such as the size and thickness of the glass body 10, and the time during which the current is passed, A current value, a voltage value, or the like is set according to the current flowing time. The storage unit 60 can be configured by a known storage medium such as a hard disk, ROM, or RAM. The function of the storage unit 60 may be realized by a storage area in the processing device 20.

  The display 62 is connected to the processing apparatus 20 and displays the surface temperature of the glass body 10, the energization current value of the glass body 10, a breakage alarm for the glass body 10, a break alarm for the thermocouple 32, and the like. A known display device such as a touch panel display can be applied to the display.

  The computer 64 is connected to the processing device 20 and performs temperature correction of the basic set temperature, the glass body type (thickness, shape, size, etc.), and the thermocouple circuit.

  The transmission / reception unit 66 is connected to the processing device 20. The transmission / reception unit 66 transmits / receives information to / from the management terminal through a communication network such as the Internet. A known transmission / reception device can be applied to the transmission / reception unit 66.

  The processing device 20 outputs the control output of the solid state relay 42 via the amplifier A3, and controls the solid state relay 42. The solid state relay 42 turns on and off power to the resistor 12 of the power supply unit 40. Since the solid state relay 40 is equipped with the zero cross function, it is possible to reduce the noise of the power source and reduce the sound. The solid state relay 42 having a zero cross function recognizes the waveform of the power supply and can be turned on / off at 0V.

  Although not shown, there may be a warning unit that warns of an abnormal state of the glass system itself (for example, an abnormal state of the temperature measurement unit) by light or sound.

2. Operation Turn on the power (S10). Next, setting data is read (S12). That is, the processing device 20 reads a temperature raising program based on the size of the glass body.

  Next, the surface temperature of the glass body 10 is measured (S14). Based on the initial surface temperature, voltage output data is calculated (S16), and a voltage is output (S18). Next, the current value flowing through the resistor 12 is measured (S20). If it is normal, the current is kept flowing, and the surface temperature is measured after a predetermined time has passed (S22). The voltage output is cut off (S24). If the surface temperature does not reach the predetermined temperature after a predetermined time, the voltage output data is recalculated (S16), and the voltage is output again (S18). In order to keep the temperature constant, the elapse of a predetermined time after the voltage output is cut off is grasped by a timer (S26), and the surface temperature is measured after the elapse of the predetermined time (S22).

  When the value of the current flowing through the resistor 12 is measured (S20) and the energized current value indicates an abnormal value, the voltage output is stopped (S28). Also, when an abnormality occurs in the temperature measuring unit 30 (S30), the voltage output is stopped (S28).

  When the temperature measured by the temperature measuring unit 30 does not become the temperature as the temperature raising program despite the predetermined current flowing, it is recognized that the temperature measuring unit 30 has failed. In this case, the failure information can be transmitted to the management terminal by the transmission / reception unit 66.

  When it is confirmed by visual observation or the like that the resistor 12 is not damaged, the size of the glass body 10 may be recognized based on the resistance value. That is, if the thickness of the resistor is the same, the size of the resistor can be recognized from the resistance value of the resistor.

  Further, if the size of the resistor 12 is known, the damage state of the resistor 12 can be confirmed by confirming the resistance value.

  A program for causing the computer of the processing device 20 to execute these processes can be stored in a ROM or the like constituting the processing device 20.

3. Function and Effect Next, the function and effect of the glass system will be described.

  (1) When temperature control of a heat-generating glass having a conductive film is performed by a general technique, in order to maintain the temperature in the heat-generating glass, a certain voltage is applied to the heat-generating glass in advance. Either measure the rise and continue to supply the voltage and current when it reaches the required temperature to the glass you want to warm, or manage the temperature, or apply a general single-phase current such as 100V to the electrode of the heating glass Supplying and checking the temperature rise by the thermocouple and the temperature controller connected to the thermocouple to confirm that the temperature has reached the required temperature is generally controlled by shutting off the electricity supplied to the heat generating glass and stopping the temperature rise. It is.

  When the temperature is controlled by these methods, the temperature of the glass when heated at a constant voltage and current measured in advance so as to obtain the desired temperature by reducing the voltage as described above. The required temperature is not reached, for example, when the temperature rise time to the required temperature is required or when the environmental temperature is low.

  Also, with this method, when supplying a constant voltage and current, measure the resistance value between the electrodes of the glass to be heated in advance, and determine the voltage and current to be supplied, with respect to the heat generating glass with different dimensions each time. A corresponding control device must be manufactured.

  On the other hand, when managed by a temperature controller, the temperature of the exothermic glass is adjusted by controlling the power supply time to maintain the set temperature, but until the set temperature is reached. Power is supplied when power is supplied and the thermocouple communicates to the temperature controller that the temperature has been achieved.

  This control method is a general method, but when trying to control the temperature of glass with high heat retention effect, etc., it generates heat when energized, and the temperature starts to rise. After the power supply is cut off, the temperature rises, and when the temperature starts to drop and the temperature controller starts energizing the heat-generating glass, the result that the temperature exceeds the set temperature again is repeated.

  There is a problem that the temperature of the glass surface constantly fluctuates and the temperature of the glass surface constantly fluctuates, resulting in power loss.

  In other words, as a method for maintaining the required temperature, in a case where the power supply is turned on and off, or in an apparatus and method that keeps supplying a constant power supply, a constant temperature with a small amount of power can be dealt with according to environmental changes. There is a problem that it is necessary to provide a device for supplying an appropriate voltage and current for measuring the resistance value that varies depending on the area of the heat generating glass and setting the temperature for each sheet. Also, in general technology, as a heating element in general, a system that simply turns off the power when the temperature rises or supplies power that does not rise any further is used, and a temperature control device for a special product called exothermic glass There has been a problem that the field of use is narrow.

  In this embodiment, since it has a correspondence table, it corresponds to the heat generating glass of different dimensions without changing the apparatus and method, and the desired temperature is maintained corresponding to the change of the environmental temperature, In addition, in a stable environment, it has a function of maintaining a constant temperature, and has a function of enabling temperature maintenance with a small amount of power.

  Controls the temperature management of a special product called exothermic glass from the ambient temperature to a temperature close to 600 ° C, and even when the glass area is different, the situation can be automatically grasped, calculated, judged and controlled. .

Controlling the temperature of the exothermic glass improves the performance of the coating-type and vapor-deposited type conductive coatings that have existed in the market, and the glass that has only been heated to around 30 ° C improves the performance of the exothermic glass. Therefore, the temperature is increased to close to 600 ° C., and the use is increased. In this way, when glass is used as a heating element, the conventional temperature control method is used as it is for heating glass, but its shape, size, thickness and required temperature are different. The corresponding control devices and methods are different, and development has been required each time, and it has been manufactured in response to the problem, but there is a problem with the rate of temperature rise, the temperature becomes unstable, power consumption Problems such as large size and cost of development for each control device are inevitable. Considering such a situation further, the present embodiment is very useful. As described above, according to the present embodiment, it is possible to improve the versatility of the processing apparatus that controls the glass system. (2) The temperature measurement unit 30 performs measurement despite a predetermined current flowing. If the measured temperature does not match the temperature raising program, it can be recognized that the temperature measuring unit 30 has failed.

(3) According to the present embodiment, it is possible to determine whether or not there is a leakage from the measured current value. Therefore, it is easy to check the damaged state.
4). Modification (1) As shown in FIG. 4, the electrodes 14 a and 14 b can be arranged such that two electrodes are arranged side by side only on one side of the glass body 10. In this case, the resistor 12 is preferably provided with a notch part.

  (2) As shown in FIG. 5, the processing apparatus 20 may control the plurality of glass bodies 10 via the terminal 70.

  The present embodiment can be variously modified within the scope of the present invention.

  The glass system of the present invention is widely applied to industries as glass for buildings, heat generating materials for heating appliances, and the like.

DESCRIPTION OF SYMBOLS 10 Glass body 12 Resistor 14a Electrode 14b Electrode 20 Processing apparatus 30 Temperature measurement part 32 Current measurement part 40 Power supply part 42 Solid state relay 44 AC / DC converter 46 DC / DC converter 50 External terminal connection part 52 Temperature setting switch 54 Temperature Display lamp 60 Storage unit 62 Touch panel display 64 Computer 66 Transmission / reception unit 70 Terminal 100 Glass system

Claims (7)

A glass body including a resistor;
A current measuring unit for measuring a current value of a current flowing through the resistor;
A temperature measuring unit for measuring the temperature of the glass body;
A storage unit storing temperature rising program data based on the size of the resistor;
Based on a temperature raising program corresponding to the size of the resistor, a power source for passing a current through the resistor;
A deriving unit for deriving the size of the resistor from the resistance value of the resistor;
Based on the current value measured by the current measurement unit and the temperature of the glass body measured by the temperature measurement unit, with reference to the temperature rise program data , even though a predetermined current value is flowing A glass system including a processing unit that determines that the temperature measuring unit is abnormal when the temperature measured by the temperature measuring unit does not become a temperature that is in accordance with a temperature raising program .   In claim 1,
  The storage unit further stores relationship data between the resistance value of the resistor and the size of the resistor,
  The derivation unit calculates a resistance value of the resistor from the current value measured by the current measurement unit, and derives the size of the resistor based on the resistance value. In claim 1 or 2,
The glass system which stops the electric current supply from the said power supply to the said resistor, when the said process part recognizes the failure of the said temperature measurement part . A processing apparatus used in a glass system having a glass body including a resistor ,
A storage unit storing temperature rising program data based on the size of the resistor;
A deriving unit for deriving the size of the resistor from the resistance value of the resistor ,
Based on the current value flowing through the resistor measured by the current measuring unit and the temperature of the glass body measured by the temperature measuring unit, a predetermined current value flows with reference to the temperature rise program data . Nevertheless, if the temperature measured by the temperature measuring unit does not become the temperature as the temperature raising program, the processing device determines that the temperature measuring unit is abnormal.   In claim 4,
  The storage unit further stores relationship data between the resistance value of the resistor and the size of the resistor,
  The derivation unit calculates a resistance value of the resistor from the current value measured by the current measurement unit, and derives the size of the resistor based on the resistance value. In claim 4 or 5,
A processing device that performs a process of stopping current supply from a power source to the resistor when the processing device recognizes a failure of the temperature measurement unit . On the computer,
A processing unit deriving the size of the resistor from the resistance value of the resistor;
Reading temperature rising program data based on the size of the resistor of the glass system from the storage unit;
Based on the current value flowing through the resistor measured by the current measuring unit and the temperature of the glass body measured by the temperature measuring unit, the predetermined current value is flowing with reference to the temperature rise program data. Nevertheless, when the temperature measured by the temperature measuring unit does not become the temperature according to the temperature raising program, a program for executing the step of determining that the temperature measuring unit is abnormal.

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