SU1245864A1 - Device for determining diameter of timber - Google Patents

Abstract

The invention can be used in the woodworking industry for the exchange and accounting of timber volumes. The purpose of the invention is to improve the accuracy of measurement of diameters due to automatic correction for the thickness of the bark. The device contains a measuring transducer, a circuit for generating counting pulses, a binary pulse counter of diameter, a decoder, a display unit, a control unit for dumping and recording preliminary information, made in the form of a setpoint generator and a single-oscillator, a block of correction values, a sensor for starting a measurement, a sensor for ending measurement , a measurement cycle control unit, an executive relay unit, a switch, a resolution circuit, an encoder, a binary counter pulse correction unit, a correction cycle control unit, and controllable Flicker. 1 and, l. (C (L GS NU SP 00 O5 4;

Description

The invention relates to the field of measuring the diameters of logs and can be used in automated devices for measuring and counting volumes of timber.

The purpose of the invention is to improve the accuracy of measuring the diameters of timber by automatically correcting for the thickness of the bark.

The drawing shows a block diagram of a device for determining the diameters of timber.

The device contains a measuring transducer 1 with two contactless sensors 2 interlacing, a counting pulse shaping circuit 3, a recording unit including a binary counter 4 pulses of diameter, a decoder 5, a display unit 6, a control unit for resetting and recording preliminary information, performed sequentially connected setters 7 and one-shot 8, memory block 9 of correction values, sensors 10 start and 11 measurement end, block 12 of the measurement cycle control, block 13 of the executive relay, switch 14, circuit 15 resolution 16, the binary counter 17 of the correction pulses, the correction cycle control block 18 and the controlled multivibrator 19, the outputs of the proximity sensors 2 of the movement are connected to two inputs 3 of the form 1 and counting pulses, the outputs of the beginning 10 and the end 11 of the sensor They are connected with two inputs of the measurement cycle control unit 12, the output of the counting pulse shaping circuit 3 is connected to the first binary counter 4 impulse input in diameter, the first output of the measurement loop control block 12 is connected to the third input Schemes 3 (|) of counting them | pulse) B, the second output of the measurement cycle control unit 12 is connected to the input m of the unit 13 iso; The output relay of the binary counter 4 diameter pulses is connected to the input of the decoder 5, the output of the 1 encoder 5 is connected to the first input of the memory offset module 9 and the input of the display unit 6, the second input of the memory block 9 is connected to the output of the setting device 7 and one input - vibrator 8, output Optpovibrator 8 is connected to the third input of the measurement cycle control unit 12, the output of memory block 9 is connected to the input of the switch 14, the output of which is connected to the first input of the resolution circuit 15, the output of which is connected to the input of the encoder 16, output encoder connected to the first input of a binary counter 17 of the correction pulses, the output of the counter 17 of the correction pulses is connected to the first input of the correction cycle control block 18, one output of the correction cycle control block 18 is connected to the input of the controlled multivibrator 19, the other output

to the fourth input of the measurement cycle control unit 12, the third output of the measurement cycle control unit 12 is connected to the second inputs of the correction cycle control unit 18 and the resolution circuit 15, the fourth output of the measurement cycle control unit 12 is connected to the third input of the correction cycle control unit 18, c the second input of the binary counter 17 of the correction pulses, with the input of the setting device 7, and also with the fourth input of the circuit 3 of forming the counting pulses and with the second input of the binary counter 4 of the diameter pulses, the output of the controlled multivibr ora 19 is connected to third inputs of the binary counter 17 pulses and correcting the binary counter 4 diameters pulses.

The device works as follows.

Before starting the process of measuring the log from the output of the setpoint 7 output to the second

the input of the correction values memory 9 receives information about the rock of the log in the form of a potential signal, and from the output of the one-shot 8 pas the third input of the measurement cycle control unit 12 is given a command as a pulse signal. In this case, a signal appears at the second output of block 12, which includes the corresponding relay of the measuring mechanism drive in block 13 of the executive relays. In the process of measurement, two pulse sequences are phase-shifted by a quarter of a period from the sensor outputs 2 of the measuring transducer to the inputs of the counting pulse shaping circuit 3, which, in the presence of an enable signal from the first output of block 12, are converted by a circuit 3 to a pulse sequence with gradation of diameter measurements. Upon completion of the measurement, signals from the outputs of sensors 10 and 11 on the first output of block 12 establish a signal prohibiting the passage of pulses in circuit 3. The signal from the second output of block 12 turns off the return relay of the measuring mechanism in block 13 of the executive relays. On the third output of block 12, a pulse signal is generated, which is fed to the second inputs of block 18.

control; correction cycle and resolution circuit 15;

The 3 series of pulses formed in the scheme, corresponding to the diameter of the log with bark, is fed to the first input of a binary counter of 4 pulses of a diameter. At the same time, the end of the measurement at the output of the counter 4 generates information in the form of a binary input of the diameter of the log with bark, which after conversion in the decoder 5 enters the first input of the memory block 9

correction values.

Thus, according to the information on the diameter of a log with bark for a certain breed, at the output of block 9 of memory values of bark,

The corrections generate information about the magnitude of the correction, which through the switch 14 is fed to the first input of the resolution circuit 15.

In the presence of a pulse resolution signal at the second input of the circuit 15, information about the amount of correction from the output of the circuit 15 is supplied through the encoder 16 in the form of a parallel code to the first input of the double-sided counter 17 of the correction pulses. In this case, a binary number is recorded in the counter 17 and the third input of the counter 17 is filled with pulses supplied from the output of the controlled multivibrator 19. The multivibrator 19 is controlled by signals supplied by us

ten

Varying information, measurement start and end sensors, measurement cycle control unit, outputs of contactless displacement sensors are connected to two inputs of the counting pulse generation circuit, outputs of the start and end measurement sensors are connected to two inputs of the measurement cycle control block, the output of the counting pulse generation circuit is connected to the first input a binary pulse diameter meter, the first output of the measurement cycle control unit is connected to the third input of the counting pulse generation circuit, the output binary pulse diameter counter connected to the input of the decoder, the output of the decoder is connected to the input

the second output of the unit 18, and the control unit of the display unit, characterized in that.

The main signal for switching on the multivibrator 19 is generated when a pulse signal is applied to the second input of block 18, and off when the signal is applied to the first input of block 18 from the output of the binary counter 17 correction pulses when the latter is filled. Pulses from the output of the multivibrator 19, the number of which corresponds to the correction value of the measured diameter, are fed to the third input of the binary counter 4 diameter pulses. From the output of the meter 4, the diameter information is output to the display unit 6 via a descrambler.

The end of the measurement and correction diameter cycle is performed by the signal supplied from the first output of the correction cycle control unit 18 to the fourth input of the measurement cycle control unit 12. In this case, at the fourth output of block 12, a pulse signal is generated, which initializes counting pulse shaping circuit 3, binary counters 4 to 17, as well as a control unit for resetting and recording preliminary information and a correction cyclome control block 18. In the setup mode, the reset button (not shown) can be used to reset the circuit to the initial state via the fourth input of block 12.

The invention allows automatic input of a correction for the thickness of the bark when measuring the diameters of logs of various species, which improves the measurement accuracy in comparison with known devices that do not provide input for the correction for the thickness of the crust.

In order to improve the measurement accuracy of timber diameters due to automatic correction for bark thickness, it is equipped with b, 1 memory correction value memory, 2Q executive relay unit, switch, resolution circuit, encoder, correction binary pulse counter, correction cycle control unit and controllable multivibrator, the control unit for resetting and the advanced information header is made in the form of a serially connected setpoint generator and a one-shot; the second output of the output unit of the measurement cycle is connected to the input of the unit of use relays, the output of the decoder is connected to the first input of the memory block; the second correction inputs, the second input of the memory block of the correction values is connected to the output of the setpoint generator and the one-vibrator input, the output of the single-vibrator is connected to the third input of the measurement cycle control unit, the output of the memory block T is connected to the input of the switch, the output of which is connected to the first input of the resolution circuit, the output of which is connected to the input of the encoder, the output of the encoder is connected to the first input of the binary counter for imp, 1s correction, the output of the counter correction pulses are connected to the first input b, the control loop of the correction cycle, one output of the correction cycle control block is connected to the input of the controlled multivibrator, the other output is connected to the fourth input b, the control loop of the measuring cycle, the third output of the control block, 1 with the measuring cycle is connected with the second inputs of the control unit, the laziness of the correction cycle and the detonation circuit, the fourth output of the control unit of the measurement cycle is connected to the third input of the control unit of the correction cycle, with the second input of the binary offset calculator and zalatchika to the input and a fourth input circuit generating count pulses and a second input of the binary counter 1uls them () in diameter, yield .ultigzibratora controllably connected to third inputs of the binary counter and the correction pulse gchetmika diameter binary pulses.

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Claims (1)

Invention Formula A device for determining the diameters of timber, containing a measuring transducer with two contactless displacement sensors, a circuit for generating counting pulses, a registration unit including a binary counter of diameter pulses, a decoder, a display unit, a reset and recording control unit Varying information, measurement start and end sensors, measurement cycle control unit, outputs of contactless displacement sensors are connected to two inputs of the counting pulse generation circuit, outputs of the start and end measurement sensors are connected to two inputs of the measurement cycle control block, the output of the counting pulse generation circuit is connected to the first input a binary pulse diameter meter, the first output of the measurement cycle control unit is connected to the third input of the counting pulse generation circuit, the output binary pulse diameter counter connected to the input of the decoder, the output of the decoder is connected to the input  Display unit, characterized in that. 0 In order to improve the measurement accuracy of timber diameters due to automatic correction for bark thickness, it is equipped with b, 1 memory of correction value, Q block of executive relays, switch, resolution circuit, encoder, binary counter of correction pulses, correction cycle control unit and controllable multivibrator, the control unit for resetting and the advanced information header is made in the form of a serially connected setpoint generator and a one-shot; the second output of the output unit of the measurement cycle is connected to the input of the unit of use relays, the output of the decoder is connected to the first input of the memory block; the second correction inputs, the second input of the memory block of the correction values is connected to the output of the setpoint generator and the one-vibrator input, the output of the single-vibrator is connected to the third input of the measurement cycle control unit, the output of the memory block T is connected to the input of the switch, the output of which is connected to the first input of the resolution circuit, the output of which is connected to the input of the encoder, the output of the encoder is connected to the first input of the binary counter for imp, 1s correction, the output of the counter correction pulses are connected to the first input b, the control loop of the correction cycle, one output of the correction cycle control block is connected to the input of the controlled multivibrator, the other output is connected to the fourth input b, the control loop of the measuring cycle, the third output of the control block, 1 with the measuring cycle is connected with the second inputs of the control unit, the laziness of the correction cycle and the detonation circuit, the fourth output of the control unit of the measurement cycle is connected to the third input of the control unit of the correction cycle, with the second input of the binary correction impulse estimator and, with the input of the patch, as well as with the fourth input of the counting pulse shaping circuit and with the second binary counter input 1 pulse () in diameter, the output of the controlled multiplier vibrator is connected to the third inputs of the binary correction pulse counter and the binary diameter pulse. five 0 five