1. Field of the Invention
The present invention relates to a power switch control system and, more particularly, to a power switch control system with area-based switch grouping.
2. Description of the Related Art
All power-consuming equipment needs to be managed and controlled in terms of power consumption. Regular home electrical appliances can be controlled in a simple way, namely, a one-to-one control pattern. When the power equipment to be controlled spreads over a large area, such as many floors in a building, the management and control over the power equipment becomes much more complicated. Given a light control system in a building as an example, the use of a digital addressable lighting interface (DALI) system is pretty common. With reference to
The technique of the DALI system is advantageous in controllability and high anti-interference capability and is disadvantageous in the following aspects.
1. Costly wiring of the control lines: The controller 70 needs to transmit the lamp control signal through the two control lines 71. Although a voltage range of signals transmitted by the control lines is just 0-20V, the insulation requirement of the control lines 71 should be the same as that for a power cable. Therefore, the work and material for wiring the control lines 71 are liable for cost increase resulting from implementation of the DALI system.
2. Limited number of controlled lamps: Limited by the 6-bit lamp control signal, a controller 70 can at most control 64 lamps.
3. Complicated and laborious work for installation and modification: In view of 72 lamps as a unit for the DALI system, to simultaneously control all the 72 lamps in a same area, the addresses of all the 72 lamps in the same area must be assigned to a group before the 72 lamps can be simultaneously turned on or off. Thus, installation and modification of the DALI system is complicated and effort-taking.
4. Asynchronous on/off timing: Because the transmission speed of the lamp control signal is rather slow, the DALI system is prone to an effect of switching delay out of Mexican wave. All lamps in a large lighting area end up with different on/off timings.
5. Difficulty in troubleshooting: When the ballast on a lamp in the DALI system is broken and needs to be replaced, the address of the ballast should be known first. However, special equipment is required to determine the address of a ballast.
Due to the prevalence of internet, internet has been introduced into lighting control. With reference to
However, each lamp 82 of the IOT system requires a wireless transmitter and a wireless receiver to connect to a wireless network. Similar to the DALI system, the multiple lamps 82 in a same area need to be located in a same network domain while it is complicated to assign the multiple lamps 82 to an identical group to be controlled. In other words, the cost of building an IOT system is still high and it is also not convenient to manage an LOT system.
An objective of the present invention is to provide a power switch control system with area-based switch grouping utilizing areas of a building as groups to be controlled and original wiring in those areas to get rid of the need of rewiring and also achieve easy implementation and cost-saving.
To achieve the foregoing objective, the power switch control system with area-based switch grouping includes multiple intelligent switches and an electronic device.
The multiple intelligent switches are respectively located in at least one compartment of a building, are respectively mounted inside multiple switch wiring boxes originally and selectively located in the at least one compartment, and are respectively connected to multiple power distribution circuits inside the respective switch wiring boxes. Each intelligent switch receives a switch control command according to a wireless communication protocol.
The electronic device generates the switch control command and transmits the switch control command to each intelligent switch according to the wireless communication protocol.
The foregoing power switch control system utilizes compartments originally planned in a building as groups to be controlled, and includes multiple intelligent switches with each intelligent switch mounted inside a corresponding switch wiring box in a corresponding compartment and connected to the power distribution circuit inside the corresponding switch wiring box. As the switch wiring boxes are originally mounted in the planned compartments before the completion of the building, multiple pieces of power-consuming equipment, such as multiple lamps, and switches originally planned in the switch wiring boxes can be used by the power switch control system. Since each intelligent switch of the power switch control system is mounted inside a corresponding switch wiring box and is connected to the power distribution circuit of the corresponding switch wiring box for the multiple lamps, an electronic device can transmit a switch control command to the multiple intelligent switches in the compartments to turn on or off the multiple lamps in the compartments through the multiple intelligent switches. The lamps in different compartments of the building can be defined as different groups to be controlled by the electronic device on a group basis.
Because the power switch control system utilizes the switch wiring boxes originally installed in corresponding compartments of a building and the power distribution circuits in the respective switch wiring boxes for connection to multiple pieces of power-consuming equipment, there is no need of rewiring for controlling the multiple pieces of power-consuming equipment and rewiring cost can be totally avoided. Moreover, original power-consuming equipment can be controlled without requiring mounting an additional transceiving device or reinstalling new power-consuming equipment, thereby significantly lowering the cost in operation.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
In the present embodiment, the building 10 totally has three compartments 11-13, and one switch wiring box 30 is mounted in one of the three compartments 11-13 and each intelligent switch 20, 20′, 20″ is mounted inside a corresponding switch wiring box 30. It is noted that more than one switch wiring box 30 may be mounted in any compartment 11-13 of the building 10. In other words, each compartment 11-13 may have multiple switch wiring boxes 30 therein, and all or a part of the multiple switch wiring boxes 30 serve for corresponding number of intelligent switches 20, 20′, 20″ to be mounted therein.
With reference to
With reference to
The detection module 25 is connected to the processing unit 22 to detect multiple sets of power usage information of the multiple lamps 40, including voltage, current, power, power factor and the like, and transmits the multiple sets of power usage information to the processing unit 22 for the processing unit 22 to store the power usage information in the storage unit 24. The processing unit 22 reads a corresponding set of power usage information according to a request issued from the electronic device 50, and transmits the corresponding set of power usage information to the electronic device 50 through the wireless module 21. The timing module 26 is connected to the processing unit 22. The processing unit 22 can automatically control the multiple lamps 40 according to the switch control command from the electronic device 50 to schedule a time to turn on or off the multiple lamps 40.
The dimmer 27 serves to adjust luminance of the multiple lamps 40 manually or according to a request from the electronic device 50. The at least one sensor is electrically connected to the processing unit 22, and includes, but is not limited to, a human body detector 281, a temperature sensor 282 and/or a photoelectric sensor 283. The human body detector 281 serves to detect the presence of people inside a compartment and automatically turn on or off the multiple lamps 40, and may be an infrared sensor or a far infrared sensor. For example, when the human body sensor 281 of the intelligent switch 20 detects no presence of people in a compartment, it indicates that all people in the compartment have left and the human body sensor 281 transmits a sensing signal to the processing unit 22 for the processing unit 22 to turn off the lamps 40 through the switching module 23.
The photoelectric sensor 283 serves to detect lighting luminance in a compartment. When the compartment has windows and the windows are open, natural light through the windows assists lighting in the compartment. After the natural light provides sufficient lighting luminance in the compartment and a total luminance in the compartment detected by the photoelectric sensor 283 reaches a preset value, the processing unit 22 is informed by the photoelectric sensor 283 to adjust the multiple lamps 40 to acquire an appropriate total luminance through the dimmer 27.
The temperature sensor 282 serves to detect a temperature of the ambient environment around the switch wiring box 30 and transmit a temperature sensing signal to the processing unit 22 for the processing unit 22 to turn on or off the lamps 40 through the switching module 23 or transmit a remote control command through the wireless module 21. Supposing that the intelligent switch 20 serves to control an air conditioner in a compartment, after detecting that an indoor temperature of the compartment is higher than a specific temperature, the intelligent switch 20 automatically turns on the air conditioner; otherwise, the intelligent switch 20 turns off the air conditioner or adjusts an air volume.
In addition to the foregoing sensors, the intelligent switch 20 may further include other sensors. With reference to
To immediately and actively process sensed results of the foregoing sensors, the processing unit 22 is further connected to a siren 294 to generate an alarm signal when the concentration of smoke, carbon monoxide or carbon dioxide exceeds the threshold, and the alarm signal can be simultaneously sent to the electronic device 50.
As mentioned earlier, the electronic device 50 can wirelessly and directly transmit the switch control command or a request command to the intelligent switch 20 for the intelligent switch 20 to directly transmit the multiple sets of power usage information and multiple pieces of sensing information to the electronic device. Besides, the intelligent switch 20 can transmit the multiple sets of power usage information and the multiple pieces of sensing information to a cloud server 60. To acquire the multiple sets of power usage information and the multiple pieces of sensing information, the electronic device 50 can either access each intelligent switch 20 or download information from each intelligent switch 20 from the cloud server 60. With reference to
Under the forgoing system architectures, the electronic device 50 can directly access information from the intelligent switch 20 through WiFi or can be indirectly connected to the intelligent switch 20 through the internet. Each intelligent switch 20 can upload the power usage information of a group pertaining to the intelligent switch 20 the cloud server 60 through the internet. The electronic device 50 can download the power usage information of a corresponding group controlled by each intelligent switch 20 from the cloud server 60 through the internet. Additionally, the intelligent switch 20 inside a switch wiring box 30 located in each compartment of the building 10 can also function as a wireless repeater for the electronic device 50 to be connected to the internet through the intelligent switch 20.
With reference to
With reference to
As each intelligent switch 20 further has the timing module 26, the operation interface of the electronic device 50 further provides a control schedule configuration page 57 to the intelligent switch 20 as shown in
As to operation of the power switch control system, the originally planned compartments inside the building 10 are taken as the areas where the multiple pieces of power-consuming equipment to be controlled by the original switch wiring boxes 30 are located to naturally form the groups to be controlled. Each intelligent switch 20 is mounted inside a corresponding switch wiring box 30 in a corresponding compartment and is connected to the power distribution circuit of the switch wiring box 30 originally connected to a corresponding piece of power-consuming equipment. Given the lamps in conference room and offices as an example, each switch wiring box 30 is responsible for control over activation and deactivation of multiple lamps 40 and such planning for lighting in the compartments of the building is done prior to the completion of the building. Therefore, the groups naturally formed by the respective switch wiring boxes 30 in the compartments serves as the most appropriate control mechanism.
With further reference to
With reference to
The advantages of using the power switch control system at least include the following:
1. Easy construction: As the power switch control system utilizes the original switch wiring boxes in the compartments of a building and each intelligent switch is connected to power-consuming equipment through original circuit inside a corresponding switch wiring box, there is no need for rewiring as far as the control over the power-consuming equipment is concerned.
2. Significant cost reduction: Due to cost saving in rewiring and no transceiving device required in power-consuming equipment to be controlled, the original power-consuming equipment can be still used without any change, thereby greatly lowering operational cost. A budgetary analysis among the power switch control system of the present invention, the DALI system, and the IOT system shown in the following table can readily tell the difference in cost (an example for lighting demand in a commercial building with a floor area 100,000 square feet).
3. Expandable sensing functions: Besides detecting the power usage information of each group and feeding back the detected power usage information to an electronic device and/or a cloud server, the intelligent switch can be further integrated with various types of sensors to control activation or deactivation of power-consuming equipment according to detected results of the integrated sensors. For example, a photoelectric sensor is integrated with a dimmer to adjust a desired luminance of a lighting area, a temperature sensor is used for adjustment of air-conditioning temperature or air volume, a human body detector is used to detect the presence of any person around for automatically performing activation or deactivation of power-consuming equipment, a smoke detector, a carbon monoxide sensor, and a carbon dioxide sensor serve for fire protection and monitoring of indoor air quality, and a timing module is used to schedule activation or deactivation of power-consuming equipment for enhancing power utilization efficiency.
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only. Changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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104105570 | Feb 2015 | TW | national |