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One yuan is for one battery

 

Product name: KX1928 tracking intelligent car
Item no: KX1928
Size: 105 * 87 * 50 mm
Weight: about 160g
Material: electronic components + circuit board + reduction motor + plastic accessories...
Color: yellow
Battery: yes
Packing: 100 PCS
Rules: 600 * 450 * 550 mm

Intelligent automatic tracking car

As quality education is more and more attention, many schools are making smart car as the preferred topics, smart car interesting also involves based, sensors, mechanical structure, electronic principle, automatic control, and even microcontroller programming and so on many discipline knowledge, students through hands-on practice can greatly improve the ability of solving practical problems, and smart car was still a good hardware platform, as long as add some control circuit can complete tracking car, fire fighting robots, robot soccer, obstacle avoidance of robot, remote control cars, etc.

There is a black track 16mm wide on the white field. Our tracking car can run automatically along the black track. It is amazing that the car can run automatically no matter how the track bends! You know when the light beam to object and black white reflective rate is different, here we use the red LED as light source, the light reflected by the ground to the photosensitive resistance by detecting photosensitive resistance tolerance change can determine whether the car driving on the white area, if detected the runway is black, show the car running deviation, this side of the motor will be slow or even halt the side of the green LED goes out, drive the car to the opposite direction, so that the car can always drive down the runway.

Accessories:

   The circuit diagramIn line with the principle from simple to complex, we will make a digital circuit to control the intelligent tracking car, in the assembly process we can not only familiar with the mechanical principle but also gradually learn: photoelectric sensor, voltage comparator, motor drive circuit and other related electronic knowledge.

   

LM393Comparator integrated circuit

   LM393It is a dual circuit voltage comparator integrated circuit composed of two independent precision voltage comparators. Its function is to compare two input voltages and change the output voltage according to the two input voltages. The output can be in two states: close to open circuit or close to low level by pull-down. LM393 USES open collector output, so a pull resistor must be added to output high level.

Dc motor with reduction gear

If the car is driven by dc motor, it must be slowed down; otherwise, if the speed is too high, the car will run too fast without enough control. Besides, if the torque is too small without deceleration, it can't even run. This kind of motor specially made by us has been integrated with reduction gear, which greatly reduces the production difficulty and is very suitable for us to use.

Let us familiar with the working principle diagram of the machine, the LM393 compare with the size of the two lines of photosensitive resistance, at any time when appear unbalanced (such as side pressure black runway) immediately control motor stalling on only one side, the other side of the motor rotate faster, which makes the car fixed direction, back to the right direction, the whole process is a closed-loop control, so can quickly intelligent control.

Step: circuit part basic welding

   Simpler circuit welding parts, welding sequence, according to the principle of component level from low to high, eight resistance welding, resistance welding is important to use multimeter confirmed to be correct, the welding of polar components such as transistors, the green light, electrolytic capacitor must clear points polarity as reference we picture element direction of welding, welding capacitor pin short is negative when insert the PCB screen printing on one side of the shadow, when the welding green LED long note pin is positive, and the welding time cannot too long otherwise easy to welding bad, D4, D5 R13 R14 can temporarily not welding, integrated circuit chips can not insert, Be sure to check carefully after the preliminary welding to prevent carelessness.

Step 2: mechanical assembly

   Insert the universal wheel screw into the PCB hole and screw in the universal wheel nut and universal wheel. The battery box is attached to the PCB by double-sided adhesive tape, the outgoing wire is welded to the PCB through the reserved hole of the PCB, the red wire is connected to the 3V positive power supply, the yellow wire is grounded, and the extra lead can be used for motor connection.

Assemble the wheel

   Mechanical parts assembly to assembly the wheel, the wheels is composed of three round piece, round piece of center hole is the inside of the long hole, in the middle of the wheel diameter is small, round the outside of the central hole is garden, with two screw nut fixed three rounds of pills, and black self-tapping screws on the motor shaft, the silica gel after tire set on the wheel. Connect the motor lead with the lead wire, then stick the wheel assembly in the designated position of PCB with self-adhesive, pay attention to keep enough gap between the wheel and the edge of PCB, weld the motor lead wire to PCB, pay attention to keep the lead wire longer, to prevent the motor from rotating in the wrong direction to facilitate the replacement of the lead sequence.

Step 3: install the photoelectric circuit

   The photosensitive resistor and led (note the polarity) are installed in reverse on the PCB, with a distance of about 5 mm from the ground, and the distance between the photosensitive resistor and the led is also about 5 mm. After the test can be energized,

Step 4: vehicle debugging

 In the battery box in 2 AA batteries, switch ON the \"ON\" position, the motion of the car right inverse is the universal wheel direction, if you hold down the left side of photosensitive resistance, the car ON the right side of the wheel should turn, hold down the right of the photosensitive resistance, the car to the left of the wheel should turn, if the car back can exchange at the same time two motor wiring, if one side is normal other retreat, as long as the exchange of back side of the motor wiring



Special notes:  The back of the assembly instructions is the track car runway, customers can also directly with 1.5 ~ 2.0 cm black electrical tape directly on the ground to design a complex runway is more fun

An exciting smart car race was held
The preliminary contest is held in the laboratory
This is a competition combining innovation, practice, knowledge and interest
The students all took out their elaborate cars
Prepare to take on your opponent

How to make a car run faster?
How to make the trolley line more accurate?
The players have been continuously practiced and improved
Improve the performance of intelligent vehicle

With unremitting efforts and teamwork
Put the car on the track
Track RACES according to established routes
Challenge yourself with firm confidence
The fast and the furious

Smart car in the track forward, turn
Step by step towards the desired destination
Carrying the faith and dedication of the players on the track

Each player's car has its merits
All hide the tenacity and passion of each player
Come and have a look at the beautified cars

Zhejiang jianyi education technology co. LTD
Zhejiang jianyi education technology co., LTD. (former yifei toy factory)Founded in 2007, the current brand is \"XING TEACHER\", \"XING TEACHER\" and \"JIAN YI\". The company after 10 years of unremitting efforts, so that the enterprise gradually mature; Our company is a member of the teaching equipment industry association of the ministry of education, and a backbone enterprise of teaching equipment in zhejiang province. For three consecutive years, our company has been rated as \"honoring contracts and keeping promises\" by jinhua city, and \"advanced collective of jinhua teaching equipment industry\" by zhejiang province in 2014.
Zhejiang jianyi education technology co., LTD. Is a high-tech enterprise integrating modern scientific research and development of scientific and educational equipment, curriculum design, teaching resources integration and technical services. Zhejiang jianyi education science and technology co., LTD., with its high-tech products and modern scientific and educational equipment, is based in the education industry. Its products are sold all over the country and exported to Europe, America, Japan and South Korea. In terms of technical innovation ability, the company has professional designers engaged in the development of complete sets of scientific and educational products and the upgrading of existing products; In the production, management and installation services, the company strictly in accordance with the IS09001 international quality assurance system standards; In terms of marketing, \"xing teacher\" products have entered many provinces and cities in China and enjoy good reputation. Over the years to provide quality, advanced, professional series of modern teaching equipment and professional equipment r & d customized services. With excellent, high-quality professional personnel, perfect after-sales service product quality and set up a good corporate image. \"Teacher xing\" science and education physics series, chemical series, solar energy, wind energy, geography, biology, art and other products have been many times in the bureau of education bidding winning. Zhejiang jianyi education science and technology co., LTD. Continues to adhere to the \"quality to the best, service to the diligence, honesty\" business philosophy, adhere to the Yang \"xing teacher\" culture, casting \"xing teacher\" brand, create \"xing teacher\" business development policy. We are willing to cooperate wholeheartedly with old and new friends at home and abroad to make progress hand in hand and try our best to serve education and devote ourselves to the cause of education.

   Before assembling, please check whether the circuit is smooth, whether the circuit fittings are complete, and whether all contact points are in good contact. Be careful not to get the glue on the clothes or the skin during assembly. Spare parts should be put in the place where the younger brother and sister can't get, so as not to swallow the parts by mistake! Don't put it on your head, lest it fall and hurt you!