CN113551709A - Road surface compaction construction detecting system - Google Patents
Road surface compaction construction detecting system Download PDFInfo
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- CN113551709A CN113551709A CN202110855419.5A CN202110855419A CN113551709A CN 113551709 A CN113551709 A CN 113551709A CN 202110855419 A CN202110855419 A CN 202110855419A CN 113551709 A CN113551709 A CN 113551709A
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Abstract
The invention discloses a pavement compaction construction detection system, which comprises a construction department, a surface layer temperature detection module, a base layer temperature detection module, a human body induction module, a pressure detection module, a timing module, a database, a first control module, a second control module, an alarm module and a communication emission module, and also comprises a temperature judgment module, a switch module and a pressure judgment module, wherein the pressure voltage signal is respectively compared with a pressure lower limit voltage signal and a pressure upper limit voltage signal, when the pressure voltage signal is less than the pressure lower limit voltage signal, more than or equal to the pressure lower limit voltage signal, less than or equal to the pressure upper limit voltage signal and more than the pressure upper limit voltage signal, a-3.3V voltage signal, a +3.3V voltage signal and a +5V voltage signal are respectively output to the second control module, and an alarm can be given when people are found to mistakenly enter a construction site, and the influence on the compaction degree of the asphalt pavement when the crowd passes on the asphalt pavement which is not completely cooled can be preliminarily detected.
Description
Technical Field
The invention relates to the technical field of construction detection, in particular to a pavement compaction construction detection system.
Background
In the process of asphalt pavement construction, obtaining proper compactness is one of effective measures for ensuring the quality and the economy of a road, the pavement engineering quality can be influenced by the underpressure and overpressure of the road, the compaction process is divided into three steps of initial compaction, final compaction and final compaction, the initial compaction is used for leveling aggregate of a mixture, the re-compaction is used for compacting and stabilizing the mixture, the final compaction is used for eliminating wheel tracks, generally speaking, a compacted surface with the compactness meeting the standard is formed on the road after the final compaction, and the traffic can be opened by waiting for the asphalt pavement to be completely and naturally cooled; however, in the natural cooling process of the asphalt pavement, people who do not know the pavement condition mistakenly rush into the construction fence, walk on the asphalt pavement which is not completely cooled, or ride a bicycle, an electric car, a motorcycle and other small cars to roll on the asphalt pavement which is not completely cooled to drive;
certain pressure is generated on the asphalt pavement which is not completely cooled by the walking of people and the rolling of a small vehicle, and when the pressure is greater than the maximum pressure which can be borne by the asphalt pavement at the temperature, the compaction degree of the asphalt pavement is changed, so that the adverse effects of local overpressure and local damage of the asphalt pavement are generated; if the construction department does not pay attention to the problem and the pressure generated by the walking of people and the rolling of small vehicles is enough to change the compaction degree of the asphalt pavement, surface water can easily enter the base course, and the service life of the asphalt pavement is reduced; if the construction department pays attention to the problem, but the pressure generated by the walking of people and the rolling of a small vehicle is not enough to change the compaction degree of the asphalt pavement, the construction department performs selective inspection and finishing on the asphalt pavement again, so that a large amount of extra manpower and material resources are wasted;
at present, most construction sites can only set monitoring at construction sites, and a monitoring picture is taken to detect the condition of the asphalt pavement, so that people cannot be found to mistakenly enter the construction sites in time, the people cannot be prevented from passing on the asphalt pavement which is not completely cooled when the condition of the pavement is not solved, and the influence of the pressure generated by the people on the asphalt pavement at the moment on the compactness of the asphalt pavement cannot be preliminarily detected.
Disclosure of Invention
Aiming at the situation, the method can give an alarm when people mistakenly enter the construction site, remind the people to leave the construction site, and preliminarily detect the influence on the compaction degree of the asphalt pavement when the people pass on the asphalt pavement which is not completely cooled, so that the accuracy of making decisions by construction departments is improved.
The technical scheme who solves is, a road surface compaction construction detecting system, including construction department, top layer temperature detection module, basic unit temperature detection module, human response module, pressure detection module, timing module, database and first control module, second control module and alarm module, communication emission module, still include temperature judgment module, switch module, pressure judgment module, this system's concrete step is as follows:
s1, the surface temperature detection module converts the surface temperature of the asphalt pavement into a surface voltage signal and transmits the surface voltage signal to the temperature judgment module and the first control module; the base temperature detection module converts the base temperature of the asphalt pavement into a base voltage signal and transmits the base voltage signal to the temperature judgment module and the first control module; the surface layer temperature detection module and the base layer temperature detection module convert the temperature into the same parameters of the voltage signal;
s2, the temperature judging module compares the surface layer voltage signal and the base layer voltage signal with the first standard temperature voltage value, if the surface layer voltage signal or the base layer voltage signal is larger than the first standard temperature voltage value, the negative level is output to the switch module; comparing the surface layer voltage signal and the base layer voltage signal with a second standard temperature voltage value, and if the surface layer voltage signal and the base layer voltage signal are both smaller than the second standard temperature voltage value, outputting a +3.3V voltage signal to a construction department;
s3, if the construction department presses the button S1 in the switch module, the power supply +6V is connected, and when the negative voltage is output in the temperature judging module, the power supply +6V is output to the human body sensing module and the pressure detecting module, and the human body sensing module and the pressure detecting module are started to work;
s4, the human body induction modules are arranged at the openings of the construction fences, the moving direction of a human body entering the construction site from the outside through the openings of the construction fences is converted into a high-level signal, the moving direction of the human body leaving from the construction site through the openings of the construction fences is converted into a low-level signal, and the low-level signal is sent to the first control module; the pressure detection module is arranged at the edge of an asphalt pavement area corresponding to the opening of the construction fence and the edge of an asphalt pavement area corresponding to a section where road conditions are suitable for passing, converts the pressure applied to the edge of the asphalt pavement area into a pressure voltage signal and sends the pressure voltage signal to the first control module;
s5, when the first control module does not receive the pressure voltage signal, if the human body induction module transmits a high level signal, the first control module immediately drives the alarm module to send out a voice alarm of 'construction heavy land, please leave immediately', and simultaneously the timing module starts to time, the timing module is cleared until the low level signal transmitted by the human body induction module, if the timing duration of the timing module exceeds the standard timing duration, a prompt signal of 'someone stays in the construction site' is transmitted to the communication transmitting module;
when the first control module receives the pressure voltage signal, the higher value of the temperatures detected by the surface layer temperature detection module and the base layer temperature detection module is immediately selected as the temperature of the asphalt pavement at the moment, the range of the maximum pressure value which can be borne by different asphalt pavements at the temperature in the database is called, the minimum value and the maximum value in the range of the maximum pressure value are respectively converted into a lower pressure limit voltage signal and an upper pressure limit voltage signal by the same parameters of the pressure detection module, and the lower pressure limit voltage signal, the upper pressure limit voltage signal and the pressure voltage signal are respectively transmitted to the pressure judgment module;
s6, the pressure judging module compares the pressure voltage signal with the pressure lower limit voltage signal and the pressure upper limit voltage signal respectively, if the pressure voltage signal is less than the pressure lower limit voltage signal, a-3.3V voltage signal is output to the second control module; if the pressure voltage signal is greater than or equal to the pressure lower limit voltage signal and less than or equal to the pressure upper limit voltage signal, outputting a +3.3V voltage signal to the second control module; if the pressure voltage signal is greater than the pressure upper limit voltage signal, outputting a +5V voltage signal to the second control module;
s7, when the second control module receives the-3.3V voltage signal transmitted by the pressure judging module, the second control module sends a prompt signal of 'the asphalt pavement is subjected to small pressure' to the communication transmitting module; when the second control module receives the +3.3V voltage signal transmitted by the pressure judging module, a prompt signal of ' the asphalt pavement is stressed and damaged, and the alarm module is driven to send out a voice alarm of ' the asphalt pavement is not cooled and the passage is forbidden ' is sent to the communication transmitting module; when the second control module receives the +5V voltage signal transmitted by the pressure judging module, the second control module sends a prompt signal of ' the asphalt pavement is subjected to larger pressure and damaged and warns ' to the communication transmitting module, and simultaneously drives the alarm module to send out ' warning! Warning! Abnormal damage of the asphalt pavement is detected;
and S8, the communication transmitting module modulates each prompting signal and transmits the prompting signal to a construction department.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. the human body sensing module is used for detecting the activities of a person entering the construction site from the outside and leaving the construction site, and when the person enters the construction site, the human body sensing module is immediately driven to send out a voice alarm of 'construction heavy land please leave immediately' to remind the intruder to leave the construction site as soon as possible, so that the situation that the intruder passes on the asphalt pavement which is not completely cooled when the road condition is not solved is reduced, and if the intruder does not leave the construction site within the standard timing duration, the human body sensing module sends 'the person stays in the construction site' information to a construction department to prompt the construction department to take monitoring in time, check all activities of the intruder in the construction site, and guide the intruder to leave the construction site as soon as possible.
2. Converting the pressure borne by the asphalt pavement into a pressure voltage signal, detecting the highest temperature value of the asphalt pavement at the moment, calling the range of the maximum pressure value which can be borne by the asphalt pavement at the temperature from a database, converting the range of the maximum pressure value into a lower pressure limit voltage signal and an upper pressure limit voltage signal, comparing the pressure voltage signal with the lower pressure limit voltage signal and the upper pressure limit voltage signal respectively, and transmitting three different voltage signals of-3.3V, +3.3V and +5V to the second control module respectively according to different comparison results;
the-3.3V voltage signal indicates that the pressure on the asphalt pavement at the temperature is not enough to change the compactness of the asphalt pavement, and sends information of 'small pressure on the asphalt pavement' to a construction department to remind the construction department that the asphalt pavement can be checked and finished without being checked again so as to reduce the waste of additional manpower and material resources; the +3.3V voltage signal indicates that the pressure applied to the asphalt pavement at the temperature is within the maximum pressure range, and sends information of 'the pressure applied to the asphalt pavement and the damage risk' to a construction department, so as to remind the construction department to adjust and take out the maximum pressure value corresponding to the asphalt pavement at the temperature from a database according to specific indexes of the asphalt pavement, including thickness and gradation, and compare the maximum pressure value with the pressure applied to the asphalt pavement at the temperature, so as to judge the change state of the pressure applied to the asphalt pavement at the temperature on the compactness of the asphalt pavement; the +5V voltage signal indicates that the pressure on the asphalt pavement at the temperature is enough to change the compaction degree of the asphalt pavement, and sends information of 'greater pressure on the asphalt pavement and damage warning' to a construction department to remind the construction department to perform selective inspection and repair on the asphalt pavement again as soon as possible so as to prevent the service life of the asphalt pavement from being shortened;
therefore, the influence of the pressure generated when the crowd passes through the asphalt pavement which is not completely cooled on the compactness of the asphalt pavement is preliminarily detected, and the accuracy of making decisions by construction departments is improved.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic circuit diagram of a temperature determination module according to the present invention;
FIG. 3 is a circuit schematic of the switch module of the present invention;
FIG. 4 is a schematic circuit diagram of a pressure determination module according to the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 4. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
The utility model provides a road surface compaction construction detecting system, includes construction department, top layer temperature detection module, basic unit temperature detection module, human response module, pressure detection module, timing module, database and first control module, second control module and alarm module, communication emission module, still includes temperature judgment module, switch module, pressure judgment module, and this system's concrete step is as follows:
s1, the surface temperature detection module adopts temperature sensors, divides the asphalt pavement into areas according to the measurable range of the temperature sensors, distributes the temperature sensors in each area, converts the surface temperature of the asphalt pavement in each area into voltage signals, selects the voltage signal with the maximum voltage value as the surface voltage signal when the surface temperature is higher and the voltage value of the corresponding voltage signal is larger, namely selects the highest temperature as the surface temperature of the asphalt pavement, and transmits the surface voltage signal to the temperature judgment module and the first control module;
the base layer temperature detection module adopts temperature sensors the same as the surface layer temperature detection module in each area to convert the base layer temperature of the asphalt pavement in each area into voltage signals, and also selects the voltage signal with the maximum voltage value as the base layer voltage signal, namely selects the highest temperature as the base layer temperature of the asphalt pavement, and transmits the base layer voltage signal to the temperature judgment module and the first control module.
S2, since the asphalt pavement can pass only when the surface layer and the base layer of the asphalt pavement are cooled to below 40-50 ℃, the voltage value converted by the temperature sensor passing through the step S1 at 50 ℃ is recorded as a first standard temperature voltage value, and the voltage value converted by the temperature sensor passing through the step S1 at 40 ℃ is recorded as a second standard temperature voltage value;
the temperature judgment module sets the voltage division values of the resistors R1-R2 and the resistors R10-R11 as first standard temperature voltage values, and sets the voltage division values of the resistors R4-R5 and the voltage division values of the resistors R12-R13 as second standard temperature voltage values; the surface voltage signal is compared with the divided voltage values of the resistors R1-R2 through the operational amplifier AR1, if the voltage value of the surface voltage signal is larger than the divided voltage value of the resistors R1-R2, the surface temperature of the asphalt pavement is not cooled to be lower than 50 ℃, at this time, the operational amplifier AR1 outputs negative voltage, the diode D1 is conducted, the negative voltage is output to one end of the resistor R20 in the switch module, if the voltage value of the surface voltage signal is smaller than the divided voltage value of the resistors R1-R2, the surface temperature of the asphalt pavement is cooled to be lower than 50 ℃, at this time, the operational amplifier AR1 outputs positive voltage, the relay K1 is conducted, the contact 1 is conducted with the contact 3, the contact 4 is conducted with the contact 6, the surface voltage signal is compared with the divided voltage values of the resistors R4-R5 through the operational amplifier AR2, and if the voltage value of the surface voltage signal is also smaller than the divided voltage values of the resistors R4-R5, the surface temperature of the asphalt pavement is cooled to be lower than 40 ℃, at the moment, the operational amplifier AR2 outputs a positive level, the relay K3 is conducted, and the contact 1 is communicated with the contact 2;
the base layer voltage signal is compared with the divided voltage values of the resistors R10-R11 through the operational amplifier AR3, if the voltage value of the base layer voltage signal is larger than the divided voltage value of the resistors R10-R11, the temperature of the base layer of the asphalt pavement is not cooled to be lower than 50 ℃, at this time, when the operational amplifier AR3 outputs negative voltage, the diode D2 is conducted, the negative voltage is output to one end of the resistor R18 in the switch module, if the voltage value of the base layer voltage signal is smaller than the divided voltage value of the resistors R10-R11, the temperature of the base layer of the asphalt pavement is cooled to be lower than 50 ℃, at this time, the operational amplifier AR3 outputs positive voltage, the relay K2 is conducted, the contact 1 is conducted to the contact 3, the contact 4 is conducted to the contact 6, the base layer voltage signal is compared with the divided voltage values of the resistors R12-R13 through the operational amplifier AR4, and if the voltage value of the base layer voltage signal is also smaller than the divided voltage value of the resistors R12-R13, the temperature of the base layer of the asphalt pavement is cooled to be lower than 40 ℃, at the moment, the operational amplifier AR4 outputs a positive level, the relay K4 is conducted, the contact 1 is communicated with the contact 2, and the +3.3V power is transmitted to a construction department to remind the construction department that the asphalt pavement of the door is cooled and can be opened for passing;
in addition, in the specific circuit structure of the temperature judging module, the inverting input end of an operational amplifier AR1 is connected with the output port of the surface temperature detecting module and the contact 6 of a relay K1, the non-inverting input end of an operational amplifier AR1 is connected with one end of a resistor R1 and one end of a resistor R2, the other end of the resistor R1 is connected with a power supply +12V, the other end of the resistor R2 is grounded, the output end of the operational amplifier AR1 is connected with the cathode of a diode D1 and one end of a resistor R3, the anode of a diode D1 is connected with one end of a resistor R20 in the switch module, the other end of the resistor R3 is connected with the contact 8 of a relay K1, the contact 635 of the relay K1 is grounded, the contact 3 of the relay K1 is connected with one end of a resistor R4 and a resistor R5, the other end of a resistor R4 is connected with the power supply +12V, the other end of the resistor R5 is grounded and the contact 2 of the relay K1, the contact 1 of the relay K1 is connected with the non-inverting input end of the relay AR2, the contact 7 of the relay K1 is grounded and the contact 3 of the relay K3, the contact bottom 4 of the relay K3 is connected with one end of a resistor R6, the other end of the resistor R6 is connected with the output end of an operator AR2, the contact 1 of the relay K3 is connected with a power supply +3.3V, the contact 2 of the relay K3 is connected with the contact 1 of a relay K4, the contact 3 of the relay K4 is grounded, the contact 2 of the relay K4 is connected with an input port of a construction department, the contact 4 of the relay K4 is connected with one end of a resistor R7, the other end of the resistor R7 is connected with the output end of an operator AR4, the non-inverting input end of the operator AR4 is connected with the contact 1 of the relay K2, the inverting input end of the operator AR4 is connected with the contact 4 of the relay K2, the contact 7 of the relay K2 is grounded, the contact 2 of the relay K2 is connected with one end of the ground and one end of the resistor R2 is connected with one end of the ground, the contact 3 of the relay K2, the other end of the relay K2 is connected with the power supply contact 12V of the relay K2, a contact 6 of the relay K2 is connected with an inverting input end of the amplifier AR3 and an output port of the base layer temperature detection module, a contact 8 of the relay K2 is connected with one end of a resistor R22, the other end of the resistor R22 is connected with an output end of the amplifier AR3 and a cathode of a diode D2, a non-inverting input end of the amplifier AR3 is connected with one ends of the resistor R10 and a resistor R11, the other end of the resistor R10 is connected with a power supply +12V, the other end of the resistor R11 is grounded, and an anode of the diode D2 is connected with one end of a resistor R18 in the switch module.
S3, in order to prevent people from entering a construction site by mistake and passing on an uncooled asphalt pavement to change the compaction degree of the asphalt pavement, a construction department can press a key S1 to switch on a power supply +6V, if an operational amplifier AR3 in a temperature judgment module outputs a negative level, a triode Q1 is conducted, a relay K5 is conducted along with the negative level, a silicon controlled rectifier Q3 is conducted, and the power supply +6V can be output to a human body induction module and a pressure detection module through a silicon controlled rectifier Q3 to start the human body induction module and the pressure detection module to work;
if the operational amplifier AR1 in the temperature judgment module outputs a negative level, the triode Q2 is conducted, the relay K6 is conducted accordingly, the silicon controlled rectifier Q4 is conducted, and the +6V power can be output to the human body induction module and the pressure detection module through the silicon controlled rectifier Q4 to start the human body induction module and the pressure detection module to work;
in addition, in the specific structure of the switch module, one end of a resistor R18 is connected with the anode of a diode D2 in the temperature judging module, the other end of the resistor R18 is connected with the base of a triode Q1, the emitter of the triode Q1 is connected with the +6V and one end of a resistor R19, the other end of the resistor R19 is connected with a contact 1 of a relay K5, a contact 3 of a relay K5 is connected with the collector of a triode Q1, a contact 4 of a relay K5 is grounded, a contact 2 of the relay K5 is connected with the control electrode of a thyristor Q3, the anode of the thyristor Q3 is connected with the anode of a Q4 and one end of a key S1, the other end of a key S1 is connected with the +6V, the control electrode of the thyristor Q4 is connected with the contact 2 of a relay K6, a contact 4 of a relay K6 is grounded, a contact 1 of a contact R21 of a resistor R21, the other end of the resistor R21 is connected with the emitter of the +6V and the collector of a triode Q21, the base of the triode Q2 is connected with the other end of the resistor R20, one end of the resistor R20 is connected with the anode of the diode D1 in the temperature judging module, and the cathode of the controllable silicon Q3 is connected with the cathode of the controllable silicon Q4, the input port of the human body sensing module and the input port of the pressure detecting module.
S4, the human body induction modules are arranged at the openings of the construction fences, the moving direction of a human body entering the construction site from the outside through the openings of the construction fences is converted into a high-level signal, the moving direction of the human body leaving from the construction site through the openings of the construction fences is converted into a low-level signal, and the low-level signal is sent to the first control module;
the pressure detection module is arranged at the edge of an asphalt pavement area corresponding to the construction fence opening and the edge of an asphalt pavement area corresponding to a traffic section where road conditions are suitable for passing, and pressure borne by the pressure detection module can represent pressure generated by an intruder and a riding vehicle on the asphalt pavement, is converted into a pressure voltage signal and is sent to the first control module.
S5, when the first control module does not receive the pressure voltage signal, if the human body sensing module transmits a high level signal, which indicates that someone enters the construction site through the opening of the construction fence from the outside, the human body sensing module immediately drives the alarm module to send out a voice alarm of 'construction heavy place, please leave immediately' to remind the intruder to leave the construction site as soon as possible, and the condition that the intruder passes through the asphalt pavement which is not completely cooled when the pavement condition is not solved is reduced; meanwhile, the timing module starts timing until a low level signal is transmitted from the human body sensing module, the fact that an intruder leaves from the construction site through an opening of the construction fence is indicated, the timing module is reset, the standard timing duration is set to be the duration which is required for a normal person to walk around the construction site for one circle according to the average walking speed of the normal person called from the database, if the timing duration of the timing module exceeds the standard timing duration, the fact that the intruder stays in the construction site is too long, the first control module sends a prompting signal that people stay in the construction site to the communication transmitting module, a construction department is prompted to take monitoring, all activities of the intruder in the construction site are checked, and the intruder is guided to leave the construction site as soon as possible;
when the first control module receives the pressure voltage signal, a higher value of the temperatures detected by the surface layer temperature detection module and the base layer temperature detection module is immediately selected as the temperature of the asphalt pavement at the moment, because the maximum values of the pressures borne by different asphalt pavements at the same temperature are often different, the maximum value range of the pressures borne by different asphalt pavements at the temperature in the database is called, the minimum value in the maximum value range of the pressures is converted into a voltage value through the pressure monitoring module in the step S4, the voltage value is recorded as a pressure lower limit voltage signal, the maximum value in the maximum value range of the pressures is converted into a voltage value through the pressure monitoring module in the step S4, the voltage value is recorded as a pressure upper limit voltage signal, and the pressure lower limit voltage signal, the pressure upper limit voltage signal and the pressure voltage signal are respectively transmitted to the pressure judgment module.
S6, the pressure judging module transmits a pressure voltage signal to the non-inverting input end of the operational amplifier AR5 and the inverting input end of the operational amplifier AR6 through the second output port of the first control module, transmits a pressure lower limit voltage signal to the inverting input end of the operational amplifier AR5 through the first output port of the first control module, transmits a pressure upper limit voltage signal to the non-inverting input end of the operational amplifier AR6 through the third output port of the first control module, compares the pressure voltage signal with the pressure lower limit voltage signal through the operational amplifier AR5, and compares the pressure voltage signal with the pressure upper limit voltage signal through the operational amplifier AR 6;
when the pressure voltage signal is smaller than the pressure lower limit voltage signal and smaller than the pressure upper limit voltage signal, the fact that the pressure applied to the asphalt pavement at the temperature is not enough to change the compactness of the asphalt pavement is shown, at the moment, the operational amplifier AR5 outputs a negative level, the triode Q6 is cut off, the triode Q5 is conducted, the relay K7 is conducted, power-3.3V is transmitted to the second control module through the contact 1 and the contact 2 of the relay K7, the relay K8 is conducted, the contact 1 and the contact 3 are conducted, the operational amplifier AR6 outputs a positive level, the triode Q9 is cut off, the triode Q7 is conducted, the relay K9 is conducted, the contact 1 and the contact 2 are conducted, and the power +3.3V is transmitted to the ground through the resistor R25;
when the pressure voltage signal is equal to the lower limit pressure signal, the situation that the pressure applied to the asphalt pavement at the temperature is within the maximum pressure range is shown, the operational amplifier AR5 outputs no output, the triodes Q5-Q6 are cut off, the operational amplifier AR6 outputs a positive level, the triode Q9 is cut off, the triode Q7 is conducted, the relay K9 is conducted, the contact 1 is connected with the contact 2, and the power supply +3.3V is transmitted to the second control module;
when the pressure voltage signal is greater than the pressure lower limit voltage signal and less than the pressure upper limit voltage signal, it is indicated that the pressure applied to the asphalt pavement at the temperature is within the pressure maximum value range, the operational amplifier AR5 outputs a positive level, the transistor Q5 is cut off, the triode Q6 is switched on, the relay K10 is switched on, the contact 1 is switched on the contact 2, the operational amplifier AR6 outputs a positive level, the transistor Q9 is cut off, the triode Q7 is switched on, the relay K9 is switched on, the contact 1 is switched on the contact 2, the power supply +3.3V is transmitted to the second control module, the transistor Q8 is switched on, the relay K11 is switched on, the contact 1 is switched on the contact 3, and the power supply +3.3V is transmitted to the ground through the resistor R26;
when the pressure voltage signal is equal to the upper pressure limit voltage signal, the situation that the pressure applied to the asphalt pavement at the temperature is within the maximum pressure range is shown, the operational amplifier AR6 has no output, the triodes Q7-Q9 are cut off, the operational amplifier AR5 outputs a positive level, the triode Q5 is cut off, the triode Q6 is conducted, the relay K10 is conducted, the contact 1 is connected with the contact 2, and the power supply +3.3V is transmitted to the second control module;
when the pressure voltage signal is greater than the pressure upper limit voltage signal, it is indicated that the pressure applied to the asphalt pavement at the temperature is enough to change the compaction degree of the asphalt pavement, and is also greater than the pressure lower limit voltage signal, at this time, the operational amplifier AR5 outputs a positive level, the transistor Q5 is cut off, the transistor Q6 is turned on, the relay K10 is turned on, the contact 1 is connected with the contact 2, the operational amplifier AR6 outputs a negative level, the transistors Q7-Q8 are cut off, the transistor Q9 is connected, the relay K12 is connected, the power supply +5V is transmitted to the second control module through the contact 1 of the relay K12, the relay K13 is connected, the contact 1 is connected with the contact 3, and the power supply +3.3V is transmitted to the ground through the resistor R27;
the specific structure of the pressure judging module comprises that an inverting input end of an operational amplifier AR5 is connected with a first output port of a first control module, a non-inverting input end of an operational amplifier AR5 is connected with a second output port of the first control module and an inverting input end of an operational amplifier AR6, a non-inverting input end of an operational amplifier AR6 is connected with a third output port of the first control module, an output end of the operational amplifier AR5 is connected with one end of a resistor R23, the other end of a resistor R23 is connected with a base electrode of a triode Q5 and a base electrode of a triode Q6, an emitter electrode of the triode Q5 is connected with a power supply +6V, a collector electrode of a triode Q5 is connected with a contact 4 of a relay K7 and a contact 4 of a relay K8, a contact 3 of the relay K7 is grounded, a contact 1 of the relay K7 is connected with a power supply-3.3V, a contact 2 of a relay K7 is connected with an input port of the second control module and a contact 2 of a contact 25 of a relay K8, a contact 2 of the relay K12, a contact 2 of the relay K13, a contact 5 is connected with a contact 2, a contact 2 of the relay K8, and a contact 5 of the relay K8 is connected with a contact 5, The emitter of the triode Q6, the other end of the resistor R25 is connected with the contact 3 of the relay K8, the contact 1 of the relay K8 is connected with the contact 2 of the relay K9, the contact 1 of the relay K9 is connected with the power supply +3.3V, the contact 3 of the relay K9 is connected with the power supply +6V, the contact 4 of the relay K9 is connected with the collector of the triode Q7, the base of the triode Q7 is connected with one end of the resistor R24 and the base of the triode Q8 and the base of the triode Q9, the other end of the resistor R24 is connected with the output end of the operational amplifier AR6, the emitter of the triode Q7 is grounded and the emitter of the triode Q8, the collector of the triode Q8 is connected with the contact 5 of the relay K11, the contact 4 of the relay K11 is connected with the power supply +6V, the contact 3 of the relay K11 is connected with one end of the resistor R26, the other end of the resistor R26 is grounded, the contact 1 of the relay K11 is connected with the contact 2 of the relay K10, the contact 1 of the relay K10 is connected with the power supply + 3V, and the contact 5396V of the relay K10, the contact 3 of the relay K10 is connected with the collector of a triode Q6, the contact 2 of the relay K11 is connected with the contact 1 of a relay K13, the emitter of the triode Q9 is connected with the power supply +6V, the collector of the triode Q9 is connected with the contact 3 of the relay K12 and the contact 4 of the relay K13, the contact 4 of the relay K12 is grounded, the contact 1 of the relay K12 is connected with the power supply +5V, the contact 3 of the relay K13 is connected with one end of a resistor R27, and the other end of the resistor R27 is grounded and the contact 5 of the relay K11.
S7, when the second control module receives the-3.3V voltage signal transmitted by the pressure judging module, namely the pressure on the asphalt pavement at the temperature is not enough to change the compactness of the asphalt pavement, the second control module transmits a prompt signal of 'the asphalt pavement is subjected to less pressure' to the communication transmitting module to remind a construction department that the asphalt pavement does not need to be checked and finished again;
when the second control module receives the +3.3V voltage signal transmitted by the pressure judging module, the second control module indicates that the pressure applied to the asphalt pavement at the temperature is in the maximum pressure range, and sends a prompt signal of 'the pressure applied to the asphalt pavement and the damage risk' to the communication transmitting module, so as to remind a construction department to take out the maximum pressure corresponding to the asphalt pavement at the temperature from a database according to specific indexes of the asphalt pavement, including thickness and gradation, and compare the maximum pressure with the pressure applied to the asphalt pavement at the temperature, so as to judge the change state of the pressure applied to the asphalt pavement at the temperature on the compactness of the asphalt pavement, and simultaneously drive the alarm module to send a 'the voice alarm that the asphalt pavement is not cooled and is forbidden to pass';
when the second control module receives the +5V voltage signal transmitted by the pressure judging module, namely the pressure on the asphalt pavement at the temperature is enough to change the compactness of the asphalt pavement, a prompt signal of ' the asphalt pavement is subjected to higher pressure and damaged and warned ' is transmitted to the communication transmitting module to remind a construction department of re-sampling and repairing the asphalt pavement as soon as possible so as to prevent the service life of the asphalt pavement from being shortened, and meanwhile, the warning module is driven to send out ' warning! Warning! Abnormal damage of asphalt pavement.
And S8, the communication transmitting module modulates each prompting signal and transmits the prompting signal to a construction department.
When the temperature detection device is used specifically, the surface temperature detection module converts the surface temperature of the asphalt pavement into a surface voltage signal and transmits the surface voltage signal to the temperature judgment module and the first control module; the base temperature detection module converts the base temperature of the asphalt pavement into a base voltage signal and transmits the base voltage signal to the temperature judgment module and the first control module; the temperature judging module compares the surface layer voltage signal and the base layer voltage signal with a first standard temperature voltage value, and outputs a negative level to the switch module if the surface layer voltage signal or the base layer voltage signal is greater than the first standard temperature voltage value; comparing the surface layer voltage signal and the base layer voltage signal with a second standard temperature voltage value, and if the surface layer voltage signal and the base layer voltage signal are both smaller than the second standard temperature voltage value, outputting a +3.3V voltage signal to a construction department; if the construction department presses a key S1 in the switch module, the power supply +6V is switched on, and when the negative voltage is output in the temperature judgment module, the power supply +6V is output to the human body induction module and the pressure detection module; the human body induction module converts the moving direction of a human body entering a construction site from the outside through the opening of the construction fence into a high-level signal, converts the moving direction of the human body leaving the construction site through the opening of the construction fence into a low-level signal and sends the low-level signal to the first control module; the pressure detection module converts the pressure applied to the asphalt pavement into a pressure voltage signal and sends the pressure voltage signal to the first control module;
when the first control module does not receive the pressure voltage signal, if the high level signal is transmitted from the human body sensing module, the alarm module is immediately driven to send out a voice alarm of 'construction heavy place and please leave immediately', meanwhile, the timing module starts to time, the timing module is reset until the low level signal is transmitted from the human body sensing module, and if the timing duration of the timing module exceeds the standard timing duration, a prompt signal of 'someone stays in the construction site' is transmitted to the communication transmitting module; when the first control module receives the pressure voltage signal, the higher value of the temperatures detected by the surface layer temperature detection module and the base layer temperature detection module is immediately selected as the temperature of the asphalt pavement at the moment, the range of the maximum pressure value which can be borne by the asphalt pavement at the temperature in the database is called, the minimum value and the maximum value in the range of the maximum pressure value are respectively converted into a lower pressure limit voltage signal and an upper pressure limit voltage signal by using the same parameters of the pressure detection module, and the lower pressure limit voltage signal, the upper pressure limit voltage signal and the pressure voltage signal are respectively transmitted to the pressure judgment module;
the pressure judgment module compares the pressure voltage signal with a pressure lower limit voltage signal and a pressure upper limit voltage signal respectively, if the pressure voltage signal is smaller than the pressure lower limit voltage signal, a-3.3V voltage signal is output to the second control module, and the second control module sends a prompt signal that the asphalt pavement is subjected to lower pressure to the communication emission module; if the pressure voltage signal is greater than or equal to the pressure lower limit voltage signal and less than or equal to the pressure upper limit voltage signal, outputting a +3.3V voltage signal to a second control module, sending a prompting signal that the asphalt pavement is stressed and damaged to a communication transmitting module by the second control module, and simultaneously driving an alarm module to send out a voice alarm that the asphalt pavement is not cooled and is forbidden to pass; if the pressure voltage signal is greater than the pressure upper limit voltage signal, a +5V voltage signal is output to the second control module, at the moment, the second control module sends a prompt signal of ' the asphalt pavement is subjected to greater pressure and damaged and warns ' to the communication emission module, and simultaneously, the alarm module is driven to send out ' warning! Warning! Abnormal damage of the asphalt pavement is detected; and the communication transmitting module modulates each prompting signal and transmits the prompting signal to a construction department.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (6)
1. The utility model provides a road surface compaction construction detecting system, includes construction department, top layer temperature detection module, basic unit temperature detection module, human response module, pressure detection module, timing module, database and first control module, second control module and alarm module, communication emission module, its characterized in that still includes temperature judgment module, switch module, pressure judgment module, and this system's concrete step is as follows:
s1, the surface temperature detection module converts the surface temperature of the asphalt pavement into a surface voltage signal and transmits the surface voltage signal to the temperature judgment module and the first control module; the base temperature detection module converts the base temperature of the asphalt pavement into a base voltage signal and transmits the base voltage signal to the temperature judgment module and the first control module; the surface layer temperature detection module and the base layer temperature detection module convert the temperature into the same parameters of the voltage signal;
s2, the temperature judging module compares the surface layer voltage signal and the base layer voltage signal with the first standard temperature voltage value, if the surface layer voltage signal or the base layer voltage signal is larger than the first standard temperature voltage value, the negative level is output to the switch module; comparing the surface layer voltage signal and the base layer voltage signal with a second standard temperature voltage value, and if the surface layer voltage signal and the base layer voltage signal are both smaller than the second standard temperature voltage value, outputting a +3.3V voltage signal to a construction department;
s3, if the construction department presses the button S1 in the switch module, the power supply +6V is connected, and when the negative voltage is output in the temperature judging module, the power supply +6V is output to the human body sensing module and the pressure detecting module, and the human body sensing module and the pressure detecting module are started;
s4, the human body induction modules are arranged at the openings of the construction fences, the moving direction of a human body entering the construction site from the outside through the openings of the construction fences is converted into a high-level signal, the moving direction of the human body leaving from the construction site through the openings of the construction fences is converted into a low-level signal, and the low-level signal is sent to the first control module; the pressure detection module is arranged at the edge of an asphalt pavement area corresponding to the opening of the construction fence and the edge of an asphalt pavement area corresponding to a section where road conditions are suitable for passing, converts the pressure applied to the edge of the asphalt pavement area into a pressure voltage signal and sends the pressure voltage signal to the first control module;
s5, when the first control module does not receive the pressure voltage signal, if the human body induction module transmits a high level signal, the first control module immediately drives the alarm module to send out a voice alarm of 'construction heavy land, please leave immediately', and simultaneously the timing module starts to time, the timing module is cleared until the low level signal transmitted by the human body induction module, if the timing duration of the timing module exceeds the standard timing duration, a prompt signal of 'someone stays in the construction site' is transmitted to the communication transmitting module;
when the first control module receives the pressure voltage signal, the larger value of the temperatures detected by the surface layer temperature detection module and the base layer temperature detection module is immediately selected as the temperature of the asphalt pavement at the moment, the range of the maximum pressure value which can be borne by different asphalt pavements at the temperature in the database is called, the minimum value and the maximum value in the range of the maximum pressure value are respectively converted into a lower pressure limit voltage signal and an upper pressure limit voltage signal by using the same parameters of the pressure detection module, and the lower pressure limit voltage signal, the upper pressure limit voltage signal and the pressure voltage signal are respectively transmitted to the pressure judgment module through a first output port of the first control module, a second output port of the first control module and a third output port of the first control module;
s6, the pressure judging module compares the pressure voltage signal with the pressure lower limit voltage signal and the pressure upper limit voltage signal respectively, if the pressure voltage signal is less than the pressure lower limit voltage signal, a-3.3V voltage signal is output to the second control module; if the pressure voltage signal is greater than or equal to the pressure lower limit voltage signal and less than or equal to the pressure upper limit voltage signal, outputting a +3.3V voltage signal to the second control module; if the pressure voltage signal is greater than the pressure upper limit voltage signal, outputting a +5V voltage signal to the second control module;
s7, when the second control module receives the-3.3V voltage signal transmitted by the pressure judging module, the second control module sends a prompt signal of 'the asphalt pavement is subjected to small pressure' to the communication transmitting module; when the second control module receives the +3.3V voltage signal transmitted by the pressure judging module, a prompt signal of ' the asphalt pavement is stressed and damaged, and the alarm module is driven to send out a voice alarm of ' the asphalt pavement is not cooled and the passage is forbidden ' is sent to the communication transmitting module; when the second control module receives the +5V voltage signal transmitted by the pressure judging module, the second control module sends a prompt signal of ' the asphalt pavement is subjected to larger pressure and damaged and warns ' to the communication transmitting module, and simultaneously drives the alarm module to send out ' warning! Warning! Abnormal damage of the asphalt pavement is detected;
and S8, the communication transmitting module modulates each prompting signal and transmits the prompting signal to a construction department.
2. The system for detecting road surface compacting construction according to claim 1, wherein the first standard temperature voltage value in step S2 is a voltage value when 50 ℃ is converted into a voltage signal with the same parameters of the surface layer temperature detection module and the base layer temperature detection module; the second standard temperature voltage value is a voltage value when the temperature of 40 ℃ is converted into a voltage signal by using the same parameters of the surface layer temperature detection module and the base layer temperature detection module.
3. The system for detecting road surface compaction construction according to claim 1, wherein the standard timing length in step S5 is a length of time taken for a normal person to walk around the construction site at the normal person average walking speed retrieved from the database.
4. The pavement compaction construction detection system according to claim 1, wherein the specific structure of the temperature determination module comprises an operational amplifier AR1, an inverting input terminal of the operational amplifier AR1 is connected with the output port of the surface temperature detection module and the contact 6 of the relay K1, a non-inverting input terminal of the operational amplifier AR1 is connected with one end of a resistor R1 and one end of a resistor R2, the other end of the resistor R1 is connected with +12V, the other end of the resistor R2 is connected with ground, an output terminal of the operational amplifier AR1 is connected with a cathode of a diode D1 and one end of a resistor R3, an anode of a diode D1 is connected with one end of a resistor R20 in the switch module, the other end of the resistor R3 is connected with the contact 8 of the relay K1, the contact 5 of the relay K1 is connected with ground, the contact 3 of the relay K1 is connected with one end of the resistor R4 and one end of the resistor R5, the other end of the resistor R4 is connected with the power supply +12V, the other end of the resistor R5 is connected with the contact 2 and the contact 2 is connected with the contact 2 of the non-inverting input terminal of the relay K828456, contact 4 of relay K1 is connected with the inverting input end of a resistor AR2, contact 7 of relay K1 is connected with ground and contact 3 of relay K3, contact 4 of relay K3 is connected with one end of a resistor R6, the other end of resistor R6 is connected with the output end of a resistor AR2, contact 1 of relay K3 is connected with +3.3V, contact 2 of relay K3 is connected with contact 1 of a relay K4, contact 3 of relay K4 is connected with ground, contact 2 of relay K4 is connected with an input port of a construction department, contact 4 of relay K4 is connected with one end of a resistor R7, the other end of resistor R7 is connected with the output end of a relay AR4, the non-inverting input end of relay AR4 is connected with contact 1 of relay K2, the inverting input end of relay AR2 is connected with contact 4 of relay K2, contact 7 of relay K2 is connected with ground, contact 2 of relay K2 is connected with ground, one end of resistor R2 and one end of the contact 2 is connected with the contact 3 of the relay K2, the other end of the resistor R12 is connected with a power supply +12V, the contact 5 of the relay K2 is grounded, the contact 6 of the relay K2 is connected with the inverting input end of the amplifier AR3 and the output port of the base layer temperature detection module, the contact 8 of the relay K2 is connected with one end of the resistor R22, the other end of the resistor R22 is connected with the output end of the amplifier AR3 and the cathode of the diode D2, the non-inverting input end of the amplifier AR3 is connected with one end of the resistor R10 and one end of the resistor R11, the other end of the resistor R10 is connected with the power supply +12V, the other end of the resistor R11 is grounded, and the anode of the diode D2 is connected with one end of the resistor R18 in the switch module.
5. The system for detecting road surface compaction construction as claimed in claim 1, wherein the switch module has a specific structure including a resistor R18, one end of the resistor R18 is connected to the anode of the diode D2 of the temperature judging module, the other end of the resistor R18 is connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to +6V and one end of the resistor R19, the other end of the resistor R19 is connected to the contact 1 of the relay K5, the contact 3 of the relay K5 is connected to the collector of the transistor Q1, the contact 4 of the relay K5 is connected to ground, the contact 2 of the relay K5 is connected to the control electrode of the thyristor Q3, the anode of the thyristor Q3 is connected to the anode of the thyristor Q4 and one end of the button S1, the other end of the button S1 is connected to +6V, the control electrode of the relay K4 is connected to the contact 2 of the relay K6, the contact 4 of the relay K6 is connected to ground, the emitter 1 of the relay K6 is connected to one end of the resistor R21, the other end of the resistor R21 and the transistor Q2, the collector of the triode Q2 is connected with the contact 3 of the relay K6, the base of the triode Q2 is connected with the other end of the resistor R20, one end of the resistor R20 is connected with the anode of the diode D1 in the temperature judging module, and the cathode of the thyristor Q3 is connected with the cathode of the thyristor Q4, the input port of the human body induction module and the input port of the pressure detection module.
6. The system for detecting the road surface compaction construction as claimed in claim 1, wherein the concrete structure of the pressure judging module comprises an operational amplifier AR5, the inverting input end of the operational amplifier AR5 is connected with the first output port of the first control module, the non-inverting input end of the operational amplifier AR5 is connected with the second output port of the first control module and the inverting input end of the operational amplifier AR6, the non-inverting input end of the operational amplifier AR6 is connected with the third output port of the first control module, the output end of the operational amplifier AR5 is connected with one end of a resistor R23, the other end of the resistor R23 is connected with a triode Q5, the base of a triode Q6, the emitter of the triode Q5 is connected with +6V, the collector of the triode Q5 is connected with the contact 4 of the relay K7 and the contact 4 of the relay K8, the contact 3 of the relay K7 is grounded, the contact 1 of the relay K7 is connected with the power-3.3V, the contact 2 of the relay K7 is connected with the input port of the second control module and the contact 2 of the relay K8, Contact 2 of relay K12, contact 2 of relay K13, contact 5 of relay K8 is grounded and one end of resistor R25, the emitter of transistor Q6, the other end of resistor R25 is connected to contact 3 of relay K8, contact 1 of relay K8 is connected to contact 2 of relay K9, contact 1 of relay K9 is connected to power +3.3V, contact 3 of relay K9 is connected to power +6V, contact 4 of relay K9 is connected to the collector of transistor Q7, the base of transistor Q7 is connected to one end of resistor R7 and the base of transistor Q7, the other end of resistor R7 is connected to the output end of AR 7, the emitter of transistor Q7 is grounded and the emitter of transistor Q7, the collector of transistor Q7 is connected to contact 5 of relay K7, contact 4 of relay K7 is connected to power +6V, the contact 3 of relay K7 is connected to the contact 3, the other end of resistor R7 is connected to the contact of resistor R7, the contact of relay K7, the contact 5 is connected to the ground, the contact of relay K7 and the contact 1 of relay K7, the contact 1 of the relay K10 is connected with a power supply +3.3V, the contact 4 of the relay K10 is connected with a power supply +6V, the contact 3 of the relay K10 is connected with the collector of the triode Q6, the contact 2 of the relay K11 is connected with the contact 1 of the relay K13, the emitter of the triode Q9 is connected with the power supply +6V, the collector of the triode Q9 is connected with the contact 3 of the relay K12 and the contact 4 of the relay K13, the contact 4 of the relay K12 is grounded, the contact 1 of the relay K12 is connected with the power supply +5V, the contact 3 of the relay K13 is connected with one end of a resistor R27, and the other end of the resistor R27 is grounded and the contact 5 of the relay K11.
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