Novel electronic literacy machine

Abstract

A novel electronic literacy machine comprises an electronic literacy machine body, a counter, a time statistics circuit, a trigger circuit and a literacy number statistics circuit. The counter, the time counting circuit, the trigger circuit and the literacy number counting circuit are arranged in a shell of the electronic literacy machine body; the signal output end of the trigger circuit is electrically connected with the signal input end of the time statistics circuit, the rear ends of the up-turning button and the down-turning button are respectively provided with a contact sheet, and the circuit board of the electronic character learning machine body is provided with a conductive sheet. And two contact ends below an accumulation counting key of the counter are electrically connected between signal output ends of the literacy number counting circuit respectively. When the child literacy device is used by a child, the trigger circuit enables the time counting circuit to count the total literacy time of the preschool child, and then parents can know whether the literacy time of the child meets the requirement or not; the literacy number counting circuit can count the total literacy number in unit time, and the parents can timely master the literacy efficiency of the student in a certain time.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic products, in particular to a novel electronic character recognition machine. Background Art

[0002] An electronic literacy machine is a device used for preschool children to practice recognizing characters, etc. Its main structure includes a shell and a power button, an up button, a down button, a volume button, a display screen, etc. connected to the main control circuit board via wires. During use, the power of the device is turned on by the power button, and the child selects different characters in the main control circuit board system by using the up button or the down button with his fingers. The display screen displays the characters and the internal speaker plays the corresponding selected fonts. The child then follows along to learn, and after repeated attempts, the child can achieve the effect of becoming familiar with characters (adjusting the volume button can achieve the purpose of adjusting the volume of the text playback, and the power button is turned off after the application is completed).

[0003] Although the existing literacy machines have met the needs of children's literacy practice to a certain extent, they are limited by their own structure and still have the following technical problems that need to be solved. Specifically, it is impossible to count the total time of children's literacy practice and the number of words they recognize per unit time. In this way, relatively good practice effects cannot be achieved (for example, parents are not at home and require preschool children to practice literacy by themselves, but they are too playful to practice literacy, which will have an adverse effect on the literacy training effect). In summary, it is particularly necessary to provide an electronic literacy machine that can count the total time children practice literacy within a certain period of time and the number of words they recognize. Utility Model Content

[0004] In order to overcome the drawbacks of existing literacy machines due to structural limitations as described in the background, the utility model provides a new type of electronic literacy machine based on an electronic literacy machine body, which can count the total literacy time of preschool children in the application and the total number of words recognized per unit time, so that parents can timely grasp the literacy situation of students within a certain period of time, which is more conducive to improving the literacy effect of students.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A novel electronic character recognition machine comprises an electronic character recognition machine body and a counter, characterized in that the machine also has a time statistics circuit, a trigger circuit and a character recognition number statistics circuit; the counter, the time statistics circuit, the trigger circuit and the character recognition number statistics circuit are installed in the shell of the electronic character recognition machine body; the signal output end of the trigger circuit is electrically connected to the signal input end of the time statistics circuit, the rear ends of the up-flip button and the down-flip button of the electronic character recognition machine body are respectively installed with contact sheets, the inner side ends of the up-flip button and the down-flip button are respectively installed with conductive sheets on the circuit board of the electronic character recognition machine body, and the two contact ends under the cumulative counting button of the counter are respectively electrically connected between the two signal output ends of the character recognition number statistics circuit.

[0007] Furthermore, the rear end of the contact piece and the front end of the conductive piece are spaced apart from each other, and after the up-turn button and the down-turn button are pressed, the rear end of the contact piece and the front end of the conductive piece are in electrical contact and conduction.

[0008] Furthermore, the time statistics circuit includes an electrically adjustable resistor and a resistor, a capacitor, a transistor, a thyristor and a light-emitting diode, one end of the adjustable resistor is connected to the positive electrode of the capacitor and one end of the first resistor, the other end of the first resistor is connected to the base of the first transistor, the collector of the first transistor is connected to the base of the second transistor, the collector of the second transistor is connected to one end of the second resistor, the other end of the second resistor is connected to the control electrode of the thyristor, the emitter of the second transistor is connected to the anode of the thyristor, the negative electrode of the capacitor is connected to the emitter of the first transistor and the negative electrode of the light-emitting diode, the positive electrode of the light-emitting diode is connected to one end of the third resistor, and the other end of the third resistor is connected to the cathode of the thyristor.

[0009] Furthermore, the character count counting circuit is a relay, the contact piece is connected to the positive electrode of the battery, and the conductive piece is connected to the positive power input terminal of the relay.

[0010] Furthermore, the trigger circuit includes an electrically connected touch metal sheet, an adjustable resistor, a field effect tube, a capacitor and a transistor, one end of the adjustable resistor is connected to the collector of the transistor, the other end of the adjustable resistor is connected to the drain of the field effect tube and the base of the transistor, the gate of the field effect tube is connected to the rear side of the metal sheet, the source of the field effect tube is connected to the negative electrode of the capacitor, the emitter of the transistor is connected to the positive electrode of the capacitor, and the metal sheet is installed on the rear outer end of the shell.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) The other functions of the present invention are exactly the same as those of the existing electronic literacy machine. With the corresponding time as the limit, when a child uses it, the trigger circuit will enable the time statistics circuit to count the total literacy time of preschool children (to see whether the minimum learning time has been reached). Parents can then actually understand whether the time for children's literacy practice has reached the required time; (2) The literacy number statistics circuit can count the total number of literacy words per unit time, so that parents can timely grasp the efficiency of students' literacy within a certain period of time, which is more conducive to improving students' literacy results. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 It is a front view schematic diagram of the overall and partial enlarged structure of the utility model.

[0014] Figure 2 It is a rear view structural schematic diagram of the utility model.

[0015] Figure 3 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0016] Figure 1 , 2 As shown in , 3, a new type of electronic character recognition machine includes an electronic character recognition machine body 1, a liquid crystal counter A2, a power switch S, and also has a time statistics circuit 2, a trigger circuit 3, and a character recognition number statistics circuit 4; the liquid crystal counter A2, the time statistics circuit 2, the trigger circuit 3, the character recognition number statistics circuit 4, and the power switch S are installed on the circuit board inside the shell of the electronic character recognition machine body 1, the display interface of the liquid crystal counter A2 and the display surface of the light-emitting diode VL, the handle of the power switch S are located outside the rear upper end of the shell, and the touch metal sheet M of the trigger circuit is located in the middle of the rear side end outside the shell. The rear end of the flip up button and the flip down button of the electronic character recognition machine body is glued with a circle of metal contact sheet S1, and the inner side right position of the flip up button 101 and the flip down button 102 is glued with a metal conductive sheet S2 on the circuit board of the electronic character recognition machine body.

[0017] Figure 1 , 2As shown in 3, the rear end of the contact sheet S1 and the front end of the conductive sheet S2 are spaced apart. After the up-flip button 101 and the down-flip button 102 are pressed respectively, the rear end of the contact sheet 101 and the front end of the conductive sheet 102 are in contact and electrically connected. The time statistics circuit includes an adjustable resistor R1 and patch components R2 and R3, a capacitor C2, transistors Q1 and Q2, a thyristor VS and a light-emitting diode VL connected through circuit board wiring. One end of the adjustable resistor R1 is connected to the positive electrode of the capacitor C2 and one end of the first resistor R2. The other end of the first resistor R2 is connected to the base of the first transistor Q1. The collector of the first transistor Q1 is connected to the base of the second transistor Q2. The collector of the second transistor Q2 is connected to one end of the second resistor R3. The other end of the second resistor R3 is connected to the control electrode of the thyristor VS. The emitter of the second transistor Q2 is connected to the anode of the thyristor VS. The negative electrode of the capacitor C2 is connected to the emitter of the first transistor Q1 and the negative electrode of the light-emitting diode VL. The positive electrode of the light-emitting diode VL is connected to one end of the third resistor R4. The other end of the third resistor R4 is connected to the cathode of the thyristor VS. The character count counting circuit is a relay K1, the contact piece S1 is connected to the positive electrode of the battery G1, and the inner side of the conductive piece S2 is connected to the positive power input terminal of the relay K1 through a wire. The trigger circuit includes a touch metal piece M, an adjustable resistor RP, and a patch element field effect tube Q3, a capacitor C2, and a transistor Q4 connected through circuit board wiring. One end of the adjustable resistor RP is connected to the collector of the transistor Q4, and the other end of the adjustable resistor RP is connected to the drain of the field effect tube Q3 and the base of the transistor Q3. The gate of the field effect tube Q3 is connected to the rear side of the metal piece M, the source of the field effect tube Q3 is connected to the negative electrode of the capacitor C1, the copper metal piece M is glued to the rear outer side of the shell, and the positive electrode of the capacitor C1 is connected to the emitter of the transistor Q4.

[0018] Figure 1 , 2 As shown in 3, the two electrodes of the battery G1 in the electronic character recognition machine body are connected in series through the power switch S, and the power input end of the time trigger circuit, the adjustable resistor RP, the negative electrode of the capacitor C1, the inner end of the metal contact piece S1 of the power input end of the character recognition counting circuit, the negative power input end of the relay K1, and the power input end of the time counting circuit, the emitter of the transistor Q2 and the emitter of the transistor Q1 are connected through wires. The signal output end of the trigger circuit, the emitter of the transistor Q4 and the negative electrode of the capacitor C1, and the other end of the adjustable resistor R1 (the handle is located outside the external opening at the rear of the upper end of the shell) and the negative electrode of the capacitor C2 are connected through wires, and the rear end of the flip up button and the flip down button of the electronic character recognition machine body is glued with a circle of metal contact piece S1, and the inner side end of the flip up button and the flip down button is glued with a metal conductive piece S2 on the circuit board of the electronic character recognition machine body at the right position of the inner side end. The two contact ends under the cumulative counting button L of the liquid crystal counter A2 are respectively connected between the control contact end and the normally open contact end of the relay K1 through wires.

[0019] Figure 1 , 2 As shown in , 3, the other functions of the new electronic literacy machine body 1 are exactly the same as those of the existing electronic literacy machines. In application, the power of the device is turned on by the power button 103, and children can select different characters in the main control circuit board system by using their fingers to turn up the button 101 or turn down the button 102. The display screen displays the characters and the internal speaker plays the corresponding selected fonts. Then the children can learn by following the reading. After repeated repetitions, they can achieve the effect of familiarizing themselves with characters (adjusting the volume button 104 can adjust the volume of the text playback, and turn off the power button 103 after the application). The above is a mature technology and this application does not provide any protection or elaboration.

[0020] Figure 1 , 2As shown in 3, before use, after the parent turns on the power switch S, the relevant circuits are powered on and work. When the child is not practicing recognizing characters, the hand will not hold the shell of the electronic literacy machine body 1, and the back of the hand will not touch the touch sheet M. In this way, the field effect tube Q3 is in a zero bias state, the resistance value between its source and drain is relatively small, and the voltage division between the field effect tube Q3 and the adjustable resistor RP is relatively low. The power output by the battery G1 enters the base of the transistor Q4 through the field effect tube Q3 and the adjustable resistor RP, and the voltage division is lower than 0.7V. The transistor Q4 will not be turned on, so the signal input end of the time statistics circuit will not When children practice recognizing characters, they hold the shell of the electronic literacy machine 1 with their hands, and the back of their hands touch the touch sheet M. In this way, the gate of the field effect tube Q3 is no longer in a zero bias state due to the input noise signal, and the resistance value between its source and drain is relatively large. The voltage division between the field effect tube Q3 and the adjustable resistor RP is relatively large. The 6V power supply output by the battery G1 enters the base of the transistor Q4 through the field effect tube Q2 and the adjustable resistor RP, which is higher than 0.7V. The transistor Q4 will turn on the emitter to output a high level, which is filtered by the capacitor C1 and enters the other end of the adjustable resistor R1 of the time statistics circuit. After the time counting circuit is powered, the 6V power supply output by the battery G1 is reduced in voltage and limited in current through the adjustable resistor R1 to charge the capacitor C2. In the initial time (before reaching the time set by the parent through the adjustable resistor R1, such as less than 30 minutes), when the capacitor C1 is not fully charged, the 6V power supply enters the base of the transistor Q1 below 0.7V through the adjustable resistor R1 and the resistor R2 to limit the current, and the transistor Q1 will not be turned on. Then the thyristor VS of the subsequent stage will not be triggered to turn on, and the light-emitting diode VL will not be powered on to emit light, which means that the student's literacy practice time has not yet reached the requirement. When the charging time is up (the time set by the parent through adjustable resistor R1, such as more than 30 minutes), when capacitor C1 is fully charged, the 6V power supply enters the base of transistor Q1 through adjustable resistor R1 and resistor R2 to limit the current and reduce the voltage, and the voltage is higher than 0.7V. Transistor Q1 will turn on the collector to output a low level and enter the base of transistor Q2. Transistor Q2 will turn on the collector to output a high level, and the resistor R3 will reduce the voltage and limit the current, triggering the thyristor VS to turn on. Then, the light-emitting diode VL will be electrified to emit light (resistor R4 reduces the voltage and limits the current), indicating that the student's literacy practice time has reached or exceeded the time requirements of the parents.

[0021] Figure 1 , 2As shown in Figure 3, after the word recognition counting circuit is powered, every time the child's finger presses the up-flip button 101 or the down-flip button 102, the rear end of the contact sheet S1 and the front end of the conductive sheet S2 are in electrical contact and conduction, so that the 6V power supply will enter the positive power input terminal of the relay K1 through the contact sheet S1 and the conductive sheet S2, and the relay K1 is powered to attract its control contact terminal and the normally open contact terminal to close. Since the two contact terminals under the cumulative counting button L of the liquid crystal counter A2 are respectively connected between the control contact terminal and the normally open contact terminal of the relay K1 through wires, so that every time the child presses the up-flip button 101 or the down-flip button 102, the counter A2 will perform a cumulative count. The parents can then intuitively understand the number of words the child has learned in the corresponding time by watching the count of the counter. The parents can timely grasp the efficiency of the students' literacy within a certain period of time, which is more conducive to improving the students' literacy effect. After the parents turn off the power switch S, all circuits lose power and do not work (the count of the counter is reset to zero).

[0022] Figure 3 In the figure, the relay K1 model is DC6V; the resistance values ​​of resistors R2, R3, and R4 are 470K, 4.7K, and 1.8K respectively; transistors Q1 and Q4 are NPN transistors of model 9013; transistor Q2 is a PNP transistor of model 9012; thyristor VS is a plastic-encapsulated unidirectional thyristor of model MCR100-1; field effect transistor Q3 is a 3DJ6 junction field effect transistor; capacitors C1 and C2 are electrolytic capacitors of 100μF / 25V (filtering function) and 1000μF / 25V respectively; light-emitting diode VL is a red light-emitting diode; the resistance value of adjustable resistor RP is 10K; the resistance value of adjustable resistor R1 is 10M (the charging time formula is as follows, time T (seconds) = electricity The capacity of capacitor C2*the resistance value of adjustable resistor R1*1.1. Parents pre-adjust the resistance value of adjustable resistor R1 to be relatively large. Then the longer the charging time of capacitor C2 is, the later the light-emitting diode VL will emit light, and the longer the corresponding statistical student literacy time period will be. Parents pre-adjust the resistance value of adjustable resistor R1 to be relatively small. Then the shorter the charging time of capacitor C2 is, the faster the light-emitting diode VL will emit light, and the shorter the corresponding statistical student literacy time period will be. The new model is set to 1800 seconds); Counter A2 is a small electronic counter of brand JIXIN (its outer shell is not used, only the internal circuit and LCD display are used. It has a cumulative counting button. Each time it is pressed, the counter performs a cumulative count)

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A new type of electronic literacy machine, comprising an electronic literacy machine body and a counter, characterized in that: It also has a time statistics circuit, a trigger circuit, and a character recognition number statistics circuit; the counter, time statistics circuit, trigger circuit, and character recognition number statistics circuit are installed in the shell of the electronic character recognition machine body; the signal output end of the trigger circuit is electrically connected to the signal input end of the time statistics circuit, and the rear ends of the up-turn button and the down-turn button of the electronic character recognition machine body are respectively installed with contact sheets, and conductive sheets are respectively installed on the circuit board of the electronic character recognition machine body at the inner side ends of the up-turn button and the down-turn button, and the two contact ends under the cumulative counting button of the counter are respectively electrically connected between the two signal output ends of the character recognition number statistics circuit.

2. A novel electronic literacy machine according to claim 1, characterized in that: The rear end of the contact piece and the front end of the conductive piece are spaced apart from each other. After the up-turn button and the down-turn button are pressed respectively, the rear end of the contact piece and the front end of the conductive piece are in contact and electrically connected.

3. A novel electronic literacy machine according to claim 1, characterized in that: The time statistics circuit includes an electrically adjustable resistor and a resistor, a capacitor, a transistor, a thyristor and a light emitting diode. One end of the adjustable resistor is connected to the positive electrode of the capacitor and one end of the first resistor. The other end of the first resistor is connected to the base of the first transistor. The collector of the first transistor is connected to the base of the second transistor. The collector of the second transistor is connected to one end of the second resistor. The other end of the second resistor is connected to the control electrode of the thyristor. The emitter of the second transistor is connected to the anode of the thyristor. The negative electrode of the capacitor is connected to the emitter of the first transistor and the negative electrode of the light emitting diode. The positive electrode of the light emitting diode is connected to one end of the third resistor. The other end of the third resistor is connected to the cathode of the thyristor.

4. A novel electronic literacy machine according to claim 1, characterized in that: The character count counting circuit is a relay, the contact piece is connected to the positive pole of the battery, and the conductive piece is connected to the positive power input terminal of the relay.

5. A novel electronic literacy machine according to claim 1, characterized in that: The trigger circuit includes an electrically connected touch metal sheet, an adjustable resistor, a field effect tube, a capacitor and a triode. One end of the adjustable resistor is connected to the collector of the triode, the other end of the adjustable resistor is connected to the drain of the field effect tube and the base of the triode, the gate of the field effect tube is connected to the rear side of the metal sheet, the source of the field effect tube is connected to the negative electrode of the capacitor, the emitter of the triode is connected to the positive electrode of the capacitor, and the metal sheet is installed at the rear outer end of the shell.

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