TWI402474B - Continuous type can be double-axis synchronous three-dimensional fast tracking system of sunlight - Google Patents

Description

Continuous type dual-axis synchronous stereo system for fast tracking of sunlight

The invention utilizes a photoresistor, a comparator, a current amplifier, a relay and a motor capable of synchronously driving in two axes to continuously track the sunlight, so that the sunlight and the solar panel can be kept in a vertical state at any time, thereby obtaining sunlight. Maximum illumination and output power.

Announcement date: 97/06/11, bulletin number: M334300, patent name: a single-chip controlled iridescent solar tracking device that uses a digital method to track sunlight, but the device needs to be placed in many positions. Many photoresistors work with many ICs to complete the tracking function.

The invention realizes the continuous tracking of sunlight by using a simple circuit and a cost, using a photoresistor, a comparator, a current amplifier, a relay and a motor capable of synchronously driving in two axes, so that the sunlight and the solar panel can be kept vertical at any time. State, in order to get the maximum illumination and output power of sunlight.

It is an object of the invention to output a drive signal using a photoresistor, a comparator and a reference voltage.

Another object of the present invention is to drive a motor that can be driven by two axes synchronously by using an output drive signal, a current amplifier, and a relay to achieve continuous tracking of sunlight.

To achieve the above and other objects, the present invention provides a continuous dual-axis synchronous stereoscopic system for rapidly tracking sunlight, comprising a shading unit, a sensing unit, a driving signal generating unit and a complex driving unit. The light-shielding unit has a plurality of photoresistors and a cylindrical light-shielding body, wherein the photoresistors are adjacent to the periphery of the cylindrical light-shielding body and the photoresistors are 90 degrees apart, and the photoresistors are One of them is oriented to the east. The feeling The measuring unit has a plurality of variable resistors, each of the variable resistors being connected to the photoresistors to form a voltage dividing circuit, wherein the photoelectric resistors convert a sunlight into an analog voltage, so that the photoresistors Each has a first analog voltage, a second analog voltage, a third analog voltage, and a fourth analog voltage. The driving signal generating unit has a complex subtractor, a complex comparator, a complex transistor and a complex resistor, and the driving signal generating unit further includes a forward by the subtractors, the comparators and the transistors A direction control circuit, a reverse direction control circuit, an up direction control circuit and a down direction control circuit. In the forward direction control circuit, an inverting terminal of one of the subtractors inputs the first analog voltage, and a non-inverting terminal of one of the subtractors inputs the second analog voltage, wherein The magnification of one of the subtractors is determined by the resistance between the output of the one of the subtractors and the opposite end, and the output of one of the subtractors is connected a non-inverting terminal of one of the comparators, wherein an inverting terminal of one of the comparators receives a reference voltage, and an output of one of the comparators is coupled to the transistors a non-inverting circuit composed of, when the second analog voltage is greater than the first analog voltage, the output of the transistor is a high state; in the reverse direction control circuit, an inverse of one of the subtractors The second analog voltage is input to the second analog voltage, and the non-inverting terminal of one of the subtractors inputs the first analog voltage, wherein one of the subtractors is amplified by one of the subtractors The resistance between the output and the opposite end is determined, and An output of one of the equalizers is coupled to a non-inverting terminal of one of the comparators, and an inverting terminal of one of the comparators receives a reference voltage, and the comparators thereof The output end of one is connected to a non-inverting circuit composed of the transistors, and when the first analog voltage is greater than the second analog voltage, the output of the transistors is high; in the control circuit of the up direction And inputting the third analog voltage to a reverse end of one of the subtractors, and inputting the fourth analog voltage to a non-inverting terminal of one of the subtractors, wherein one of the subtractors The magnification is determined by the resistance between the output of the one of the subtractors and the opposite end, and the output of one of the subtractors is coupled to the non-inverting end of the comparators And the comparators An inverting terminal of one receives a reference voltage, and an output of one of the comparators is coupled to a non-inverting circuit composed of the transistors, and when the fourth analog voltage is greater than the third analog voltage Thereafter, the output of the transistors is in a high state; in the down direction control circuit, the fourth analog voltage is input to the reverse end of one of the subtractors, and the non-reverse of one of the subtractors The phase terminal inputs the third analog voltage, wherein one of the magnitudes of the subtractors is determined by the resistance between the output of the one of the subtractors and the opposite terminal, and the subtraction An output of one of the comparators is coupled to a non-inverting terminal of one of the comparators, and an inverting terminal of one of the comparators receives a reference voltage, and one of the comparators The output end is connected to a non-inverting circuit composed of the transistors, and when the third analog voltage is greater than the fourth analog voltage, the output of the transistors is high; each of the driving units has a complex number Lington's current amplification transistor and a relay, Each of the driving units is connected to the forward direction drive circuit, the reverse direction drive circuit, the up direction drive circuit and the down direction drive circuit to drive a motor that moves in a two-axis direction to perform a forward motion, a reverse motion, One up and down action.

As shown in FIG. 1 , it is a system diagram of a continuous type of dual-axis synchronous stereoscopic fast tracking sunlight according to the present invention, which is composed of a shading unit 10, a sensing unit 20, a driving signal generating unit 30 and a driving unit 40.

As shown in FIG. 2, in the light shielding unit of the present invention, the light shielding unit 10 is composed of four photoresistors and a cylindrical light shielding body 11, wherein four photoresistors are placed at 90 degrees around the cylindrical light shielding body 11, respectively. It is defined as positive east photoresistor 12, positive western photoresistor 13, positive south photoresistor 14, and north north photoresistor 15.

As shown in FIG. 3 , the sensing voltage dividing circuit diagram of the present invention is a sensing voltage dividing circuit composed of four sets of variable resistors and photoresistors having the same specifications. When the sunlight hits the shading unit 10, the variable resistor and the photoresistor The voltage dividing circuit is formed by converting the sunlight projected on the photoresistor into an analog voltage, wherein the voltage divider circuit of the positive east photoresistor, the positive western photoresistor, the positive south photoresistor, and the north photoresistor is The obtained divided voltages are a first analog voltage V1, a second analog voltage V2, a third analog voltage V3, and a fourth analog voltage V4, respectively.

The driving signal generating unit 30 is composed of four sets of subtractors, comparators and two transistors of the same specification, and includes: a forward direction control circuit, a reverse direction control circuit, an up direction control circuit, and a down direction control circuit. .

As shown in FIG. 4, the circuit of the forward direction control circuit of the present invention, the subtractor U1 uses the first analog voltage V1 as the inverting terminal input of U1, and the second analog voltage V2 as the non-inverting terminal input of U1. The amplification factor of the subtracter U1 is R4/R2, the output of the subtracter U1 will be the non-inverting terminal input of the comparator U2 in the forward direction, and the resistor R5, the variable resistor R6, the resistor R7 and the ground line component In the voltage circuit, the reference voltage is drawn from the contact of the resistor R5 and the variable resistor R6, and is used as the inverting terminal input of the comparator U2 in the forward direction. The output of the comparator U2 is driven by the resistor R8, the resistor R9, and the transistor. A non-inverting circuit composed of Q1 and transistor Q2 and having an output signal of Vo1. When the second analog voltage V2 is greater than (>) the first analog voltage V1, the output signal Vo1 is outputted as "high state", and vice versa. ".

As shown in FIG. 5, the reverse direction control circuit diagram of the present invention, the subtractor U3 uses the second analog voltage V2 as the inverting terminal input of the subtractor U3, and the first analog voltage V1 is used as the non-reverse of the subtractor U3. Phase input, the amplification factor of the subtractor U3 is R13/R11, the output of the subtracter U3 will be the non-inverting terminal input of the comparator U4 in the reverse direction, and the resistor R14, the variable resistor R15, the resistor R16 and the ground line The component voltage circuit, the reference voltage is drawn by the contact of the resistor R14 and the variable resistor R15, and is used as the inverting terminal input of the comparator U4 in the reverse direction, and the output of the comparator U4 is driven by the resistor R17, the resistor R18, and the electric A non-inverting circuit composed of a crystal Q3 and a transistor Q4 and having an output signal of Vo2. When the first analog voltage V1 is greater than (>) the second analog voltage V2, the output signal Vo2 is outputted as "high state", and vice versa. state".

As shown in FIG. 6 , the control circuit of the up direction control circuit of the present invention, the subtractor U5 uses the third analog voltage V3 as the inverting terminal input of the subtractor U5, and the fourth analog voltage V4 as the subtractor U5. Inverting terminal input, the amplification factor of the subtractor U5 is R22/R20, the output of the subtracter U5 will be the non-inverting terminal input of the comparator U6 in the up direction, and the resistor R23, the variable resistor R24, the resistor R25 and The ground line constitutes a voltage dividing circuit, and the reference voltage is drawn from the contact of the resistor R23 and the variable resistor R24 as the inverting terminal input of the comparator U6 in the up direction, and the output of the comparator U6 is driven by the resistor R26 and the resistor. a non-inverting circuit composed of R27, transistor Q5 and transistor Q6 and the output signal is Vo3. When the fourth analog voltage V4 is greater than (>) the third analog voltage V3, the output signal Vo3 is output as "high state", otherwise It is "low state".

As shown in FIG. 7 , the lowering direction control circuit diagram of the present invention, the subtractor U7 uses the fourth analog voltage V4 as the inverting terminal input of the subtractor U7, and the third analog voltage V3 as the non-inverting phase of the U7. Terminal input, the amplification factor of the subtractor U7 is R31/R29, the output of the subtracter U7 will be the non-inverting terminal input of the comparator U8 in the down direction, and the resistor R32, the variable resistor R33, the resistor R34 and the ground line The component voltage circuit, the reference voltage of the resistor R32 and the variable resistor R33 is taken as the inverting terminal input of the comparator U8 in the down direction, and the output of the comparator U8 is driven by the resistor R35, the resistor R36, and the electric A non-inverting circuit composed of a crystal Q7 and a transistor Q8 and having an output signal of Vo4. When the third analog voltage V3 is greater than (>) the fourth analog voltage V4, the output signal Vo4 is outputted as "high state", and vice versa. state".

The driving unit 40 is composed of four sets of Darlington-type current amplifying transistors and relays of the same specification for driving a motor capable of biaxial movement, including: a forward direction driving circuit, a reverse direction driving circuit, and an upward direction Drive circuit and drive circuit in the down direction.

As shown in FIG. 8, the driving circuit of the forward direction of the present invention, the output signal Vo1 of the forward direction control circuit of the driving signal generating unit 30 is used as a Darlington pair current amplifying transistor composed of a transistor Q9 and a transistor Q10. Input letter No. The drive relay (Relay) 41 causes the AC current to pass through the forward end point A of the motor that can be moved in two axes, thereby generating a forward motion.

As shown in FIG. 9, the driving circuit of the reverse direction driving circuit of the present invention, the output signal Vo2 of the reverse direction control circuit of the driving signal generating unit 30 is used as the input of the Darlington to the current amplifying transistor composed of the transistor Q11 and the transistor Q12. The signal, drive relay (Relay) 42 causes the alternating current to reverse the end point B of the motor that is bi-axially movable, resulting in a reversal action.

As shown in FIG. 10, in the upward direction driving circuit diagram of the present invention, the output signal Vo3 of the up-direction driving circuit of the driving signal generating unit 30 is used as a Darlington pair current amplifying transistor composed of a transistor Q13 and a transistor Q14. The input signal drives a relay 43 to cause an alternating current to pass through the upper end point C of the motor capable of biaxial movement to generate an up-going motion.

As shown in FIG. 11, the driving circuit of the driving direction of the driving signal generating unit 30 is a Darlington-pair current amplifying transistor composed of a transistor Q15 and a transistor Q16. The input signal drives a relay 44 to cause an alternating current to pass through the down-dip end D of the motor that is bi-axially movable, resulting in a downward motion.

The embodiments described above are merely preferred embodiments for the purpose of fully illustrating the invention, and the scope of the invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of the present invention. The scope of protection of the present invention is based on the scope of the patent application.

10‧‧‧ shading unit

20‧‧‧Sensor unit

30‧‧‧Drive signal generation unit

40‧‧‧ drive unit

11‧‧‧Cylindrical sunscreen

12‧‧‧正东方 Photoresist

13‧‧‧Western Photoresistors

14‧‧‧正南Photoresist

15‧‧‧Northern Photoresistor

41, 42, 43, 44‧‧‧ drive relay

V1‧‧‧ first analog voltage

V2‧‧‧Second analog voltage

V3‧‧‧ third analog voltage

V4‧‧‧ fourth analog voltage

U1, U3, U5, U7‧‧‧ subtractor

U2, U4, U6, U8‧‧‧ comparator

Q1~Q15‧‧‧Optoelectronics

Vo1~Vo4‧‧‧ output signal

R1~R36‧‧‧ resistance

Figure 1 is a system diagram of a continuous type of dual-axis synchronous stereoscopic fast tracking of sunlight; Figure 2 is a shading unit; Figure 3 is a sensing voltage dividing circuit diagram; Figure 4 is a forward direction control circuit diagram; Figure 5 is a reverse direction control circuit diagram Figure 6 is a control circuit diagram of the up direction control; 7 is a downward direction control circuit diagram; FIG. 8 is a forward direction drive circuit diagram; FIG. 9 is a reverse direction drive circuit diagram; FIG. 10 is a top direction drive circuit diagram;

10‧‧‧ shading unit

20‧‧‧Sensor unit

30‧‧‧Drive signal generation unit

40‧‧‧ drive unit

Claims (1)

A continuous dual-axis synchronous stereoscopic system for rapidly tracking sunlight, comprising: a shading unit having a plurality of photoresistors and a cylindrical shutter, wherein the photoresistors are respectively adjacent to a periphery of the cylindrical shutter And the photoresistors are 90 degrees apart, and one of the photoresistors is oriented toward the east; a sensing unit having a plurality of variable resistors, each of the variable resistors being connected to the photoresistors Forming a voltage dividing circuit, wherein the sunlight is converted into an analog voltage by the photoresistors, so that each of the photoresistors has a first analog voltage (V1) and a second analog voltage (V2). a third analog voltage (V3) and a fourth analog voltage (V4); a driving signal generating unit having a complex subtractor, a complex comparator, a complex transistor, and a complex resistor, and the driving signal generating unit is subjected to the subtraction The comparator, the comparators and the transistors further comprise: a forward direction control circuit, the first analog voltage is input to an inverting terminal of one of the subtractors, and the subtractors One of the non-inverting terminals inputs the second analog voltage, wherein the magnification of one of the subtractors is between the output of the one of the subtractors and the opposite end Resisting, and an output of one of the subtractors is coupled to a non-inverting terminal of one of the comparators, and an inverting terminal of one of the comparators receives a reference voltage, and the An output of one of the comparators is connected to a non-inverting circuit composed of the transistors, and when the second analog voltage is greater than the first analog voltage, the output of the transistors is high; a direction control circuit that inputs the second analog voltage at an inverting end of one of the subtractors, and inputs a first analog voltage to a non-inverting terminal of one of the subtractors, wherein the subtractor One of the magnifications is determined by the resistance between the output of the one of the subtractors and the opposite end, and the output of one of the subtractors is coupled to the comparators The non-inverting end of one of them, and the inverse of one of the comparators A receiving end a reference voltage, and an output of one of the comparators is connected to a non-inverting circuit composed of the transistors, and when the first analog voltage is greater than the second analog voltage, the output of the transistors is a state in which a third analog voltage is input to an inverting terminal of one of the subtractors, and a fourth analog voltage is input to a non-inverting terminal of one of the subtractors Wherein one of the subtractors is determined by the resistance between the output of the one of the subtractors and the opposite end, and the output of one of the subtractors Connecting the non-inverting terminals of the comparators, and the inverting terminal of one of the comparators receives a reference voltage, and the output of one of the comparators is connected by the transistors a non-inverting circuit, and when the fourth analog voltage is greater than the third analog voltage, the output of the transistor is a high state; the downward direction control circuit is input at a reverse end of one of the subtractors The fourth analog voltage and the subtractors One of the non-inverting terminals inputs the third analog voltage, wherein one of the subtractors of the subtractors is determined by the resistance between the output of the one of the subtractors and the opposite end And an output of one of the subtractors is coupled to a non-inverting terminal of one of the comparators, and an inverting terminal of one of the comparators receives a reference voltage, and the comparing The output of one of the devices is connected to a non-inverting circuit composed of the transistors, and after the third analog voltage is greater than the fourth analog voltage, the output of the transistors is high; the complex driving unit Each of the driving units has a plurality of Darlington pair current amplifying transistors and a relay, and the driving units are respectively connected to the forward direction driving circuit, the reverse direction driving circuit, the up direction driving circuit and the downward direction The driving circuit drives a motor that moves in a two-axis direction to perform a forward motion, a reverse motion, an upward motion, and a downward motion.