[819] | 1 | /*! |
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| 2 | \file |
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| 3 | \brief Traffic Light Agents |
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| 4 | \author Vaclav Smidl. |
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| 5 | */ |
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| 6 | |
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| 7 | #ifndef TRAGE_H |
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| 8 | #define TRAGE_H |
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| 9 | |
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| 10 | |
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| 11 | #include <base/participants.h> |
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| 12 | |
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| 13 | using namespace bdm; |
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| 14 | |
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| 15 | //! detector of traffic variables |
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| 16 | class Detector{ |
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| 17 | public: |
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| 18 | string name; //! detector name |
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| 19 | int distance; //! distance from stop-line |
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| 20 | //! function loading info from Setting |
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| 21 | void from_setting(const Setting &set){ |
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| 22 | UI::get(name,set,"name",UI::compulsory); |
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| 23 | UI::get(distance,set,"distance",UI::compulsory); |
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| 24 | } |
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| 25 | }; |
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| 26 | |
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| 27 | //! detector fo incomming flow |
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| 28 | class DetectorIn : public Detector{ |
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| 29 | string from; // from agent |
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| 30 | Array<string> to; // to signal plans |
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| 31 | void from_setting(const Setting &set){ |
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| 32 | Detector::from_setting(set); |
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| 33 | UI::get(from,set,"from",UI::compulsory); |
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| 34 | UI::get(to, set, "to", UI::compulsory); |
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| 35 | } |
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| 36 | }; |
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| 37 | |
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| 38 | //! structure for output detectors |
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| 39 | class RequestOut { |
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| 40 | public: |
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| 41 | string to; // agent |
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| 42 | Array<string> from; //detectors |
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| 43 | void from_setting(const Setting &set){ |
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| 44 | UI::get(from,set,"from",UI::compulsory); |
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| 45 | UI::get(to, set, "to", UI::compulsory); |
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| 46 | } |
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| 47 | }; |
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| 48 | |
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| 49 | |
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| 50 | //! class with physical information about a signal group |
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| 51 | class SignalGroup { |
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| 52 | public: |
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| 53 | string name; //! names of the group |
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| 54 | Array<Detector> detectors; //! (possible) detectors |
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| 55 | |
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| 56 | //! function that loads information from Setting |
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| 57 | void from_setting(const Setting &set); |
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| 58 | }; |
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| 59 | |
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| 60 | //! class that operates on a signal group |
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| 61 | class SignalGroupHandler { |
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| 62 | protected: |
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| 63 | //! pointer to physical signal group |
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| 64 | SignalGroup *sg; |
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| 65 | |
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| 66 | public: |
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| 67 | //! actual data from the relevant signal group |
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| 68 | vec det_data; |
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| 69 | //! description of det_data |
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| 70 | RV rv_det_data; |
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| 71 | //! link from global measured data |
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| 72 | datalink ds2data; |
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| 73 | //! link from data to global out_data |
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| 74 | datalink data2out; |
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| 75 | public: |
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| 76 | SignalGroupHandler(SignalGroup *sg0, const string &agent_name):rv_det_data(){ |
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| 77 | sg=sg0; |
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| 78 | for (int i=0;i<sg->detectors.length();i++){ |
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| 79 | rv_det_data.add(RV(agent_name + sg->detectors(i).name, 1)); //TODO intensity occupancy |
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| 80 | } |
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| 81 | |
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| 82 | } |
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| 83 | |
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| 84 | //! arbitrary function that computes the need of the signal group for green light in common units (number of waiting cars?) |
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| 85 | double expected_load(){ |
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| 86 | if (det_data.length()>0){ |
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| 87 | return det_data(0); // whatever |
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| 88 | } else { |
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| 89 | return 1.0; // mean value |
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| 90 | } |
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| 91 | } |
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| 92 | }; |
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| 93 | |
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| 94 | class RequestHandler{ |
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| 95 | protected: |
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| 96 | RequestOut *rq; |
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| 97 | public: |
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| 98 | RV rv; |
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| 99 | datalink outdata2out; |
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| 100 | public: |
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| 101 | RequestHandler(RequestOut *rq0, const string &agent_name){ |
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| 102 | rq=rq0; |
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| 103 | for (int i=0;i<rq->from.length();i++){ |
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| 104 | rv.add(RV(agent_name + rq->from(i), 1)); //TODO intensity occupancy |
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| 105 | } |
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| 106 | } |
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| 107 | }; |
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| 108 | |
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| 109 | /*! |
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| 110 | \brief Basic Traffic Agent |
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| 111 | |
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| 112 | */ |
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| 113 | class BaseTrafficAgent : public Participant { |
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| 114 | protected: |
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| 115 | //! Signal Groups |
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| 116 | Array<SignalGroup> sg; |
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| 117 | |
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| 118 | Array<SignalGroupHandler> sgh; |
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| 119 | |
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| 120 | //!data from messages |
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| 121 | vec input_data; |
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| 122 | |
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| 123 | //! decription of msg_data |
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| 124 | RV input_rv; |
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| 125 | |
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| 126 | //! data to broadcast |
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| 127 | vec output_data; |
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| 128 | |
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| 129 | //! description of broadcast dataind |
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| 130 | RV output_rv; |
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| 131 | |
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| 132 | RV action_rv; |
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| 133 | |
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| 134 | datalink_part action2ds; |
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| 135 | |
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| 136 | //! output recepient |
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| 137 | Array<RequestOut> requests; |
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| 138 | Array<RequestHandler> request_handler; |
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| 139 | |
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| 140 | public: |
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| 141 | void validate(){ |
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| 142 | // write internal checks if all was loaded OK |
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| 143 | } |
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| 144 | void receive(const Setting &msg){ |
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| 145 | string what; |
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| 146 | UI::get(what, msg, "what", UI::compulsory); |
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| 147 | |
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| 148 | if (what=="data"){ // |
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| 149 | // field data |
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| 150 | //! decription of detected data |
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| 151 | shared_ptr<RV> rv=UI::build<RV>(msg,"rv",UI::compulsory); |
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| 152 | ivec ind=rv->dataind(input_rv); // position of rv in in_rv; |
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| 153 | if (ind.length()>0){ //data belong here |
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| 154 | vec dt; |
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| 155 | UI::get(dt, msg, "value",UI::compulsory); |
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| 156 | set_subvector(input_data, ind, dt); //check size? |
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| 157 | } |
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| 158 | } else { |
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| 159 | bdm_warning("Unknown message of type "+what); |
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| 160 | } |
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| 161 | } |
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| 162 | void broadcast(Setting& set){ |
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| 163 | // broadcast data to all neighbours |
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| 164 | for (int i=0; i<request_handler.length(); i++){ |
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| 165 | Setting &msg =set.add(Setting::TypeGroup); |
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| 166 | RequestHandler &R=request_handler(i); |
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| 167 | |
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| 168 | // copy from create message |
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| 169 | Setting &m_to=msg.add("to",Setting::TypeString); |
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| 170 | m_to=requests(i).to; |
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| 171 | Setting &m_what=msg.add("what",Setting::TypeString); |
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| 172 | m_what="data"; |
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| 173 | //Setting &m_data=msg.add("data",Setting::TypeGroup); |
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| 174 | Setting &m_rv=msg.add("rv",Setting::TypeGroup); |
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| 175 | R.rv.to_setting(m_rv); |
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| 176 | Setting &m_val=msg.add("value",Setting::TypeGroup); |
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| 177 | vec val =R.outdata2out.pushdown(output_data); |
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| 178 | UI::save(val, m_val); |
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| 179 | } |
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| 180 | } |
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| 181 | void adapt(const vec &glob_dt){ |
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| 182 | // copy data from global vector to sSGHandlers |
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| 183 | for (int i=0; i<sgh.length();i++){ |
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| 184 | sgh(i).ds2data.filldown(glob_dt, sgh(i).det_data); |
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| 185 | } |
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| 186 | // copy sg_length ... |
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| 187 | } |
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| 188 | void act(vec &glob_ut){ |
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| 189 | vec needs(sgh.length()); |
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| 190 | for (int i=0; i<sgh.length();i++){ |
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| 191 | needs(i) = sgh(i).expected_load(); |
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| 192 | } |
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| 193 | vec action = needs/sum(needs); // trivial stuff |
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| 194 | action2ds.filldown(action,glob_ut); |
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| 195 | } |
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| 196 | |
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| 197 | void ds_register(const DS &ds){ |
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| 198 | for (int i=0; i<sgh.length(); i++){ |
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| 199 | sgh(i).ds2data.set_connection(ds._drv(), sgh(i).rv_det_data); |
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| 200 | } |
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| 201 | action2ds.set_connection(action_rv, ds._urv()); |
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| 202 | } |
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| 203 | |
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| 204 | void from_setting(const Setting &set){}; |
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| 205 | }; |
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| 206 | UIREGISTER(BaseTrafficAgent); |
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| 207 | |
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| 208 | #endif //TRAGE_H |
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