TWI653398B - Ceiling fan with supplementary balance calibration and system using the same - Google Patents

Abstract

The invention relates to a ceiling fan with an auxiliary correction function and a system using the same, the ceiling fan comprising a support member, a fan body, a control circuit, a gravity sensor and a wireless transmission circuit. Support members are used to connect the ceiling. The fan body is connected to the support member and has a plurality of blades. The gravity sensor and the wireless transmission circuit are coupled to the control circuit. When the ceiling fan is activated and enters a calibration mode, the control circuit controls the fan body to operate for a predetermined time, and activates the gravity sensor for a center of gravity detection. After the center of gravity detection is completed, a center of gravity setting information is transmitted to the external wireless receiving device through the wireless transmission circuit, and the user can set the ceiling fan balancing component to the designated fan blade of the plurality of blades by using the center of gravity setting information. Corresponding location.

Description

Ceiling fan with auxiliary correction function and system using same

The present invention relates to a ceiling fan technology, and more particularly to a ceiling fan having an auxiliary correction function and a system using the same.

The shaking of the ceiling fan often causes insecurities in the human heart, and always feels that there may be dangers of falling at any time. In order to prevent the shaking of the ceiling fan, it is generally a manual experiment. Because the balance of the ceiling fan is closely related to the weight and angle of the fan blade. In general, the rules of the rule of thumb are used to do the manual weighting. The weight method first needs to first number the blades, then add the weights to the No. 1 to No. 5 fan blades in order, and judge whether the ceiling fans are balanced by the naked eye, and try to use the balance provided by the ceiling fans. Adjust the fan blades one by one to adjust the center of gravity of the ceiling fan. However, this type of adjustment is quite time consuming and labor intensive.

It is an object of the present invention to provide a supplement The ceiling fan and the system using the same for correcting the function, the time and manpower for adjusting the shaking state of the ceiling fan are reduced, so that the user can detect by himself, saving time and convenience.

In view of this, the present invention provides a ceiling fan having an auxiliary correction function. The ceiling fan with auxiliary correction function includes a support member, a fan body, a control circuit, a gravity sensor and a wireless transmission circuit. Support members are used to connect the ceiling. The fan body is connected to the support member and has a plurality of blades. The gravity sensor is coupled to the above control circuit. The wireless transmission circuit is coupled to the above control circuit. When the ceiling fan is activated and enters a calibration mode, the control circuit controls the fan body to operate for a predetermined time, and activates the gravity sensor to perform a center of gravity detection. After the center of gravity detection is completed, a center of gravity setting information is transmitted to the external wireless receiving device through the wireless transmission circuit, and the user can set the ceiling fan balancing component to the designated fan blade of the plurality of blades by using the center of gravity setting information. Corresponding location.

The present invention additionally provides a ceiling fan system that assists in correcting functions. The ceiling fan system of the auxiliary correction function includes a mobile device and a ceiling fan. The ceiling fan includes a support member, a fan body, a control circuit, a gravity sensor, and a wireless transmission circuit. Support members are used to connect the ceiling. The fan body is connected to the support member and has a plurality of blades. The gravity sensor is coupled to the above control circuit. The wireless transmission circuit is coupled to the above control circuit. When the user enters the ceiling fan into a calibration mode through the mobile device, the control circuit controls the fan body to operate for a predetermined time, and activates the gravity sensor to perform a center of gravity detection. After the center of gravity detection is completed, a center of gravity is transmitted through the wireless transmission circuit. The mobile device is sent to the mobile device. Therefore, the user can set the ceiling fan balancing component to the corresponding position of the specified one of the plurality of blades by using the center of gravity setting information.

According to the ceiling fan and the ceiling fan system with auxiliary correction function according to the preferred embodiment of the present invention, the gravity sensor is an acceleration sensor. In another preferred embodiment, the user can transmit an activation signal to the wireless transmission circuit through an external mobile device to activate the ceiling fan with the auxiliary correction function. In another preferred embodiment, the mobile device is a smart phone. In another preferred embodiment, the mobile device is a tablet computer.

The spirit of the invention lies in the built-in wireless transmission circuit and the gravity sensor in the ceiling fan, the gravity sensor automatically detects the center of gravity of the ceiling fan, and uses the wireless transmission circuit to transmit the center of gravity information to the external wireless receiving circuit, for example, recently The most popular smart phone. Thereby, the user can clearly know the influence of each blade on the center of gravity of the ceiling fan, and can correctly configure the balance member to the ceiling fan blade to solve the adjustment of the ceiling fan sway state and reduce the number of manpower experiments.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

101‧‧‧ Ceiling fan

102‧‧‧Mobile devices

103‧‧‧Support parts

104‧‧‧Fan body

105‧‧‧Control circuit

106‧‧‧Gravity sensor

107‧‧‧Wireless transmission circuit

108‧‧‧Circuit Module

310‧‧‧ Center of gravity

FIG. 1 is a circuit block diagram of a ceiling fan system with an auxiliary correction function according to a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram showing the center of gravity detection of a ceiling fan system with an auxiliary correction function according to a preferred embodiment of the present invention.

FIG. 3 is a schematic diagram showing an offset angle of a ceiling fan system with an auxiliary correction function according to a preferred embodiment of the present invention.

FIG. 1 is a circuit block diagram of a ceiling fan system with an auxiliary correction function according to a preferred embodiment of the present invention. Referring to FIG. 1, the ceiling fan system with the auxiliary correction function includes a ceiling fan 101 and a mobile device 102. The ceiling fan 101 includes a support member 103, a fan body 104, and a circuit module 108. The circuit module includes a control circuit 105, a gravity sensor 106 and a wireless transmission circuit 107. The support member 103 is used to connect the ceiling. The fan body 104 is connected to the support member and has a plurality of blades. The gravity sensor 106 and the wireless transmission circuit 107 are coupled to the control circuit 105 described above.

First, assume that the gravity sensor 106 is a three-axis acceleration sensor, that is, a three-axis G-sensor; the mobile device 102 is a smart phone or tablet; the wireless transmission circuit 107 is assumed to be a Bluetooth wireless transmission circuit in this embodiment. The user can connect the ceiling fan 101 through the Bluetooth transmission protocol through the mobile device 102, and send a control command to the wireless transmission circuit 107 to directly control the ceiling fan 101. When the user activates the ceiling fan 101 through the Bluetooth transmission protocol of the mobile device 102 and controls it to enter a calibration mode, the wireless transmission circuit 107 transmits a control command to the control circuit 105, and the control circuit 105 controls the fan body 104 to operate. When booking Meanwhile, the control circuit 105 simultaneously activates the gravity sensor 106 to perform a center of gravity detection.

Generally, the gravity sensor 106 detecting circuit is disposed in the center of the axial center of the fan body 104. FIG. 2 is a schematic diagram showing the center of gravity detection of a ceiling fan system with an auxiliary correction function according to a preferred embodiment of the present invention. Referring to FIG. 2, in this embodiment, the X-axis, the Y-axis, and the Z-axis are defined as shown in FIG. 2. In the center of gravity detection, the control circuit 105 waits for the fan body 104 of the ceiling fan 101 to stabilize the rotational speed, for example, 132 RPM (Revolutions Per Minute), activates the gravity sensor 106, and detects the acceleration of each axis by the gravity sensor 106. , converted the tilt angle. The tilt angle is measured every 5 ms, and the measured angle is transmitted wirelessly to the user's mobile device 102, and the user's mobile device 102 can record the offset angle of one rotation.

The offset angle can be calculated by a basic trigonometric function. For example, calculating the offset angle θ between the X-axis and the Z-axis can be calculated by calculating θ=tan ^-1 [a(x)/a(z)] Obtained, where a(x) is the component of the acceleration on the X axis, and a(z) is the component of the acceleration on the Z axis. FIG. 3 is a schematic diagram showing an offset angle of a ceiling fan system with an auxiliary correction function according to a preferred embodiment of the present invention. Referring to FIG. 3, each of the offset angles with respect to the Z axis is recorded, and after the patterning, the center of gravity shift when the fan body 104 is rotated can be judged. By the calculation of the user's mobile device 102, the offset and offset angle of the center of gravity 310 from the axis can be determined. In order to enable those skilled in the art to understand the present invention, in the drawings of this embodiment, the fan blade position of the fan is indicated, and the position of the center of gravity 310 to be calculated by the software is also indicated. Therefore, it can be seen from this embodiment that according to the principle of the lever, the balance can be achieved by arranging the balance of the ceiling fan on the fan blade opposite the center of gravity, that is, the number 2 fan blade. Since the calculation of the center of gravity is prior art, it will not be described.

As can be seen from the above embodiment, the present invention can greatly reduce the labor and time required to adjust the sway of the ceiling fan. As for the above embodiment, the center of gravity is calculated by using an application of the mobile device (such as a mobile phone APP), but those skilled in the art should know that the work of calculating the center of gravity can also be designed to be performed in the control circuit 105 of the ceiling fan. Increase the cost of ceiling fans. Therefore, the above embodiments of the present invention are described in the form of a preferred embodiment, but the invention is not limited thereto.

Furthermore, it can be seen from the above embodiment that the embodiment of the present invention calculates the center of gravity of the ceiling fan by using the calculation of the center of gravity of the unequal polygon, although in this embodiment, five blades are taken as an example, but the technical field thereof Those with ordinary knowledge should know that if applied to three blades, the calculation of the center of gravity of the polygon will be calculated using the center of gravity of the triangle. If applied to the four blades, the calculation of the center of gravity of the polygon will be calculated using the center of gravity of the quadrilateral. Therefore, the invention is not limited thereto.

Furthermore, in the above preferred embodiment of the present invention, only the center of gravity position is calculated. However, in actual application, the present invention can further calculate the actual position of the weight of the blade. Therefore, the invention is not limited thereto.

In summary, the spirit of the present invention is to build a wireless transmission circuit and a gravity sensor in the ceiling fan, and the gravity sensor automatically detects the center of gravity of the ceiling fan, and transmits the center of gravity information to the wireless transmission circuit. External wireless receiving circuits, such as the most popular smart phones of recent times. Thereby, the user can clearly know the influence of each blade on the center of gravity of the ceiling fan, and can correctly configure the balance member to the ceiling fan blade to solve the adjustment of the ceiling fan sway state and reduce the number of manpower experiments.

The specific embodiments of the present invention are intended to be illustrative only and not to limit the invention to the above embodiments, without departing from the spirit of the invention and the following claims. The scope of the invention and the various changes made are within the scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

Claims (10)

A ceiling fan having an auxiliary correction function, comprising: a support member for connecting a ceiling; a fan body connected to the support member, having a plurality of blades; a control circuit; a gravity sensor coupled to the control circuit; And a wireless transmission circuit coupled to the control circuit; when the ceiling fan is activated to enter a calibration mode, the control circuit controls the fan body to operate for a predetermined time, and activates the gravity sensor to perform a center of gravity offset detection After the center of gravity offset detection is completed, a center of gravity offset information is transmitted to the external wireless device through the wireless transmission circuit, and the user can configure the ceiling fan balancing component to the plurality of blades by using the gravity center offset information. Corresponding position of the designated fan blade, wherein when the fan blade of the fan body is N, the center of gravity offset information is N-shaped by the area sensed by the gravity sensor, corresponding to N blades respectively The position is to find the center of gravity of the inequal N-edge, where N is a natural number. A ceiling fan having an auxiliary correction function as described in claim 1 is wherein the gravity sensor is an acceleration sensor. A ceiling fan having an auxiliary correction function as described in claim 1 wherein the user can transmit an activation signal to the wireless transmission circuit through an external wireless device to activate the auxiliary correction function. fan. A ceiling fan having an auxiliary correction function as described in claim 1 of the patent application, wherein the wireless device is a smart phone. A ceiling fan having an auxiliary correction function as described in the first aspect of the patent application, wherein the wireless device is a tablet computer. A ceiling fan system for assisting correction function, comprising: a mobile device; and a ceiling fan; a supporting member for connecting the ceiling; a fan body connecting the supporting member, having a plurality of blades; a control circuit; and a gravity sensing The control circuit is coupled to the control circuit; and a wireless transmission circuit is coupled to the control circuit; wherein when the user enters the calibration mode through the mobile device, the control circuit controls the fan body to operate for a predetermined time, And the gravity sensor is activated to perform a center of gravity offset detection; after the center of gravity offset detection is completed, a center of gravity offset information is transmitted to the mobile device through the wireless transmission circuit, and the user can offset by the center of gravity Information, the ceiling fan balancing component is disposed to a corresponding position of the designated one of the plurality of blades, wherein when the fan blade of the fan body is N, the center of gravity offset information is the area sensed by the gravity sensor N-side The shape corresponds to the position of the N blades, respectively, to find the center of gravity of the unequal N-edge, where N is a natural number. A ceiling fan system with an auxiliary correction function as described in claim 6 of the patent application, wherein the gravity sensor is an acceleration sensor. A ceiling fan system with an auxiliary correction function as described in claim 6 wherein the user can transmit an activation signal to the wireless transmission circuit through an external mobile device to activate the ceiling fan having the auxiliary correction function. A ceiling fan system with an auxiliary correction function as described in claim 6 of the patent application, wherein the mobile device is a smart phone. A ceiling fan system having an auxiliary correction function as described in claim 6 of the patent application, wherein the mobile device is a tablet computer.